LPFO vs HFO: Specifications, Grades & Trading Differences

Choosing between heavy fuel oil and low pour fuel oil means matching viscosity, sulfur, and cold-flow properties to the engine, the climate, and the regulation that governs the voyage. HFO grades such as RMG 380 and RMK 500 dominate deep-sea bunkering but demand heated tanks, high-capacity purifiers, and either a scrubber or a VLSFO variant to meet IMO 2020. LPFO sits between conventional residual fuel and marine gas oil, typically blended at 180, 380 cSt with a pour point at or below 0 °C so it stays pumpable in Baltic, Great Lakes, or Russian winter ports without trace heating. This guide walks through the ISO 8217 grade tables, the refinery blending ratios that set viscosity and pour point, the additive dosing that prevents wax lock-up, and the documentary checks, bunker delivery note, MARPOL sample, and certificate of quality, that protect the buyer when the cargo arrives.

You will learn how cutter-stock selection shifts catalytic fines and CCAI, why the 100 °C viscosity figure on the BDN matters more than the 50 °C number for injector set-points, how the new DF and DZ bio-blend grades fit into existing HFO tanks, and which sulfur band applies to your trade lane. The comparison tables align every critical parameter so procurement teams can specify the right grade on the first enquiry.

LPFO vs HFO: Quick Comparison Table

Side-by-side comparison of LPFO and HFO across critical ISO 8217 parameters for immediate procurement decisions.

Parameter	HFO (ISO 8217:2024 RMG/RMK)	LPFO (Typical Distillate/Residual Blend)	Test Method	Operational Impact
Kinematic Viscosity @ 50°C	180, 700 cSt (RMG 180, 380, RMK 500, 700)	10, 60 cSt	ISO 3104	HFO requires heavy heating; LPFO often pumpable at ambient
Sulfur Content (max)		0.50, 1.50 % m/m	ISO 8754 / ISO 14596	LPFO suits non-IMO markets; HFO needs scrubber or VLSFO grade
Pour Point (max)	30 °C (winter) / 24 °C (summer)	, 6 °C to 6 °C	ISO 3016	LPFO needs less tank heating in cold climates
CCAI (max)	870	850	ISO 8217 Annex B	Lower CCAI in LPFO indicates better ignition quality
Cat Fines Al+Si (max)	60 mg/kg	15 mg/kg	ISO 10478	LPFO reduces purifier wear and engine deposits
Hydrogen Sulfide (max)	2.00 mg/kg	2.00 mg/kg	IP 570	Same safety threshold for tank headspace

The table shows that LPFO sits between traditional heavy fuel oil and marine gas oil on viscosity and sulfur. HFO grades RMG 380 and RMK 500/700 dominate residual bunker sales while LPFO typically appears as a 10, 60 cSt blend with sulfur capped around 1.5 % for non-IMO trades. Pour point is the sharpest operational divider: HFO tanks must be held above 24, 30 °C whereas LPFO remains fluid well below freezing. Cat fines at 60 mg/kg in HFO demand high-efficiency purifiers sized for 2, 3 passes; LPFO at 15 mg/kg eases that burden. Buyers specifying LPFO for coastal or inland vessels gain simpler heating and cleaning but must confirm the sulfur limit matches local regulation.

What Is HFO and How Is It Produced

Heavy fuel oil is the residual fraction left after atmospheric and vacuum distillation of crude oil and serves as the primary feedstock for marine residual grades.

Straight-run residue from atmospheric and vacuum distillation

Straight-run residue from atmospheric and vacuum distillation forms the base of every HFO grade. Crude enters the atmospheric tower where lighter fractions boil off leaving atmospheric residue. That residue feeds the vacuum unit which strips additional gas oil cuts under reduced pressure leaving vacuum residue the core HFO blending component. The vacuum residue yield varies by crude assay but typically ranges from 30 to 50 percent of the original barrel. Refiners blend this residue with cutter stocks to hit target viscosities for RMG 180 through RMK 700. Singapore's bunker sales totalled 56.77 million tonnes in 2025 according to Maritime and Port Authority of Singapore reflecting the massive scale of residual fuel moving through the primary Asian hub.

Cutter stock blending to meet viscosity grades

Cutter stock blending adjusts vacuum residue viscosity down to the ISO 8217 grade steps. Light cycle oil from the FCC unit straight-run gas oil or imported diesel-range streams serve as typical cutters. The blender calculates the required cutter ratio using a blending index or logarithmic equation to land on 180 380 500 or 700 cSt at 50 °C. Over-cutting raises the pour point and can push CCAI above 870 while under-cutting leaves viscosity out of spec. Terminal operators often inline-blend at the loading rack using Coriolis meters to guarantee the final product meets the BDN values before the barge departs.

Typical refinery stream sources and variability

Typical refinery stream sources and variability introduce batch-to-batch differences that buyers must manage. Vacuum residue from a heavy high-sulfur crude yields a high-density high-CCAI residue while a light sweet crude produces a lower-density residue that may need less cutter but can carry higher cat fines if the FCC unit is running hard. Blending components like clarified oil or slurry oil add aromaticity and density but also raise cat fines and carbon residue. A prudent buyer requests the component assay and the refinery blending log before lifting a cargo especially when switching supply regions.

What Is LPFO and Where It Fits in the Fuel Oil Family

Low pour fuel oil (LPFO) is a blended residual grade engineered to remain pumpable at low ambient temperatures without the heavy heating infrastructure required by standard high-sulfur fuel oil (HFO). Refiners achieve this by mixing vacuum residue with a higher proportion of distillate cutter stock and adding pour-point depressant additives that modify wax crystal formation. The result is a fuel that typically meets a maximum pour point of 0 °C or lower while retaining the energy density of a residual product. LPFO sits between conventional HFO and marine gas oil in the fuel family, offering a cost-effective solution for industrial boilers, power plants, and non-IMO-regulated vessels operating in cold-climate ports where standard HFO would solidify in storage tanks and pipelines. Sales of high-sulphur marine fuel (MFO) in Singapore totalled 21.73 million tonnes in 2025 according to the Maritime and Port Authority of Singapore, illustrating the continued scale of residual fuel demand that LPFO serves in specific niches.

Pour point depressant chemistry and wax modification

Pour point depressants (PPDs) are polymeric additives typically dosed at 100 to 500 ppm that co-crystallize with paraffin wax molecules as the fuel cools. By interfering with the growth of large, interlocking wax platelets, PPDs keep crystals small and dispersed so the fuel retains a yield stress low enough for centrifugal pumps to handle. The chemistry is most effective on paraffinic residues; highly aromatic or asphaltenic residues respond less predictably, so blenders run laboratory pour-point tests on each component stream before committing to a cargo. Overdosing can cause a "reversion" effect where the pour point rises again, and compatibility with the specific cutter stock must be verified to avoid sludge formation. Buyers should request the PPD type, treat rate, and low-temperature flow test results on the certificate of quality.

Blending ratio of residue to distillate cutter stock

LPFO blending ratios typically range from 70:30 to 50:50 residue-to-cutter by volume, compared with 85:15 to 95:5 for standard 380 cSt HFO. The higher cutter fraction lowers viscosity to the 180, 380 cSt at 50 °C range and depresses the pour point, but it also reduces density and net specific energy. Blenders calculate the exact ratio using logarithmic blending indices for viscosity and a linear approximation for pour point, then confirm with a final lab test on the composite sample. Because cutter stock is a valuable diesel-range stream, LPFO carries a price premium over HFO that varies with the gas oil crack spread. Traders monitor the Rotterdam and Singapore gas oil differentials daily to price LPFO cargoes accurately.

Typical end-use markets outside IMO-regulated shipping

LPFO finds its largest outlets in industrial power generation, district heating, and large-process boilers in Northern Europe, the Baltic states, Russia, Canada, and the US Great Lakes region. These installations often lack the heavy fuel heating systems required for 380 cSt HFO but need the higher calorific value and lower cost per GJ that distillate grades cannot provide. Non-IMO coastal vessels, ice-class bulkers, and government icebreakers also lift LPFO for winter operations. In these markets the fuel is sold against national specifications such as GOST 10585-2013 (Russia) or DIN 51603-3 (Germany) rather than ISO 8217, so buyers must verify that the BDN references the correct standard and that sulfur limits align with local environmental permits.

ISO 8217:2024 Grade Tables, HFO Residual Grades vs LPFO and Distillate Grades

The 2024 edition of ISO 8217 structures residual marine fuels into nine viscosity grades from RMA 10 to RMH 100, each defined by kinematic viscosity at 50 °C ranging from 10 to 100 mm²/s. Distillate grades DMA through DMZ cover marine gas oil and marine diesel oil with viscosity measured at 40 °C and stricter limits on sulfur, FAME, and cold-flow properties. New categories DF and DZ designate FAME or HVO co-processed residual blends, allowing up to 100 % bio-content in the distillate fraction while maintaining residual-grade viscosity steps. The table below summarizes the key parameter limits for the most traded grades. Sales of alternative marine fuels in Singapore rose to 1.95 million tonnes in 2025 according to the Maritime and Port Authority of Singapore, reflecting growing uptake of the newer DF and DZ categories alongside traditional residual grades.

ISO 8217:2024 Grade	Viscosity (mm²/s) & Temp	Max Sulfur (% m/m)	Max Pour Point (°C)	Max CCAI	Typical Use Case
RMA 10, RMH 100	10, 100 @ 50 °C	0.50 (VLSFO) / 3.50 (HSFO)	30 (summer) / 0 (winter)	870	Deep-sea main engines, scrubber-fitted
DMA, DMZ	2.0, 6.0 @ 40 °C	0.10 (ECA) / 0.50 (Global)	-6 (winter DMA) / 0 (summer)	N/A	ECA compliance, auxiliary engines
DFA, DFZ (FAME/HVO)	2.0, 6.0 @ 40 °C	0.10 / 0.50	-6 (winter) / 0 (summer)	N/A	Bio-blend distillate, GHG reduction
RMA 10, RMH 100 (DF/DZ)	10, 100 @ 50 °C	0.50 / 3.50	30 / 0	870	Bio-blend residual, existing HFO tanks

The table shows that residual grades span a wide viscosity ladder while sharing common sulfur caps aligned with IMO 2020 (0.50 % VLSFO) and the legacy 3.50 % cap for scrubber-equipped ships, as noted by Ship & Bunker (2019) and ExxonMobil Marine (pre-2020). Distillate grades DMA, DMZ are capped at 0.10 % sulfur for ECA operations and 0.50 % globally, with cold-flow properties tightened for winter delivery, per Ship & Bunker (2019). The new DF and DZ rows mirror their fossil counterparts but permit bio-components up to 100 % in the distillate fraction, enabling drop-in decarbonization without engine modification. Buyers specifying LPFO for cold-climate industrial use should reference the winter pour-point column (0 °C max) and confirm the supplier can meet the CCAI limit of 870 to avoid ignition-delay issues in older burners.

Critical Property Limits Compared: Viscosity, Sulfur, Pour Point, CCAI, Cat Fines, H₂S

Engine compatibility and storage stability depend on six core parameters that diverge sharply between heavy fuel oil and low pour fuel oil grades. The table below aligns ISO 8217:2024 residual grades with typical LPFO specifications so procurement teams can match fuel to equipment without trial-and-error blending.

Parameter	HFO RMG 380 (High Sulfur)	HFO RMG 380 (VLSFO)	Typical LPFO (Industrial)	ISO 8217:2024 Limit Residual	Test Method
Kinematic Viscosity @ 50 °C	380 mm²/s max	380 mm²/s max	180 mm²/s max	Grade specific	ISO 3104
Kinematic Viscosity @ 100 °C	~35 mm²/s	~35 mm²/s	~18 mm²/s	N/A	ISO 3104
Pour Point (Upper)	30 °C	30 °C	0 °C (winter) / 6 °C (summer)	30 °C max	ISO 3016
CCAI	870 max	870 max	870 max	870 max	Calculated
Catalytic Fines (Al+Si)	60 mg/kg max	60 mg/kg max	15 mg/kg typical	60 mg/kg max	ISO 10478
Hydrogen Sulfide	2.0 mg/kg max	2.0 mg/kg max	2.0 mg/kg max	2.0 mg/kg max	IP 570

The table shows that LPFO trades higher viscosity flexibility for a drastically lower pour point, enabling unheated storage in temperate climates where HFO would solidify. Catalytic fines run lower in LPFO because the blend uses lighter cutter stock rather than straight vacuum residue, reducing purifier wear. Hydrogen sulfide limits are identical across grades because the safety threshold is driven by tank-headspace toxicity, not combustion chemistry. Buyers should verify the 100 °C viscosity on the certificate of quality; it determines the actual injector temperature set-point more reliably than the 50 °C figure alone.

Viscosity at 50 °C and 100 °C for injection temperature control

Viscosity at 50 °C and 100 °C for injection temperature control defines the heating profile from storage tank to engine fuel pumps. HFO grades such as RMG 380 target 380 mm²/s at 50 °C, requiring tank temperatures near 60 °C and injector-viscometer set-points around 130 °C to reach the 10–15 mm²/s window demanded by two-stroke engines. LPFO capped at 180 mm²/s at 50 °C typically reaches injection viscosity at 100 °C, cutting steam or thermal-oil consumption. The 100 °C figure on the BDN is therefore the practical checkpoint: if it exceeds 20 mm²/s the vessel’s fuel heaters may fall short on cold-start mornings.

Sulfur caps for global fleet and ECA compliance

Sulfur caps for global fleet and ECA compliance split the market into three distinct sulfur bands. Scrubber-fitted vessels still lift 3.5% m/m HFO under the legacy MARPOL Annex VI Regulation 14.1.3 allowance (pre-2020 cap per ExxonMobil Marine). The global fleet without scrubbers must burn 0.50% m/m VLSFO or compliant LPFO under Regulation 14.1.3 as amended 2020 (2020 cap per ExxonMobil Marine; demand context per Ship & Bunker 2019). Inside emission control areas the limit drops to 0.10% m/m, forcing a switch to distillate grades DMA/DMZ or ultra-low-sulfur residual blends that meet the 0.10% threshold.

Pour point depression and cold-flow additive dosing

Pour point depression and cold-flow additive dosing determine whether fuel remains pumpable without trace heating. HFO pour points cluster at 30 °C maximum under ISO 8217, mandating insulated tanks and heating coils year-round. LPFO specifies 0 °C winter and 6 °C summer upper limits, achieved by blending 15–25% light cycle oil or kerosene cutter stock plus 100–300 ppm pour-point depressant polymer. Over-dosing depressants can cause sludge precipitation when the fuel later meets warmer HFO in shared tanks. Refiners run the ISO 3016 pour-point test after 24-hour settling at the target temperature; buyers should request the same protocol on the pre-delivery sample to avoid disputes.

Production and Blending: Residue, Cutter Stock, Pour-Point Depressants, Bio-Blend Components

Refinery blending workflows turn vacuum residue into marketable grades through a sequence of cutter-stock addition, additive injection, and homogeneity verification. The process differs fundamentally for HFO and LPFO because the target pour point and viscosity windows dictate different cutter-stock volumes and additive chemistries.

Cutter stock types: light cycle oil, kerosene, straight-run distillate

Cutter stock types: light cycle oil, kerosene, straight-run distillate define the aromaticity and stability envelope of the final blend. HFO typically receives 5–15 % light cycle oil (LCO) from the FCC unit; LCO’s high aromatic content improves CCAI but raises cat-fines risk if the FCC cyclone efficiency drifts. LPFO demands kerosene or straight-run atmospheric gasoil to collapse the pour point below 0 °C; these paraffinic cutters lower CCAI and reduce sludge formation but increase blend cost. Blenders run the ISO 8217 spot test (ASTM D4740) after each cutter addition; a fail triggers re-blend with a more paraffinic cutter or dosage increase of dispersant. Tank-farm operators must segregate LCO-heavy and kerosene-heavy parcels because cross-contamination shifts the pour point by 10 °C per 5 % mix error.

Pour-point depressant injection rates and compatibility testing

Pour-point depressant injection rates and compatibility testing govern cold-flow reliability. Ethylene-vinyl acetate copolymers dose at 100–300 ppm active polymer for LPFO; HFO rarely receives depressants because tank heating is assumed. The depressant is injected inline at the blender discharge header using a calibrated positive-displacement pump with a check valve to prevent back-mixing. Compatibility is verified by the ASTM D4740 spot test between the treated blend and a reference fuel representing the receiving tank heel. A rating of 1 or 2 is acceptable; 3 or 4 mandates tank cleaning before transfer. Field experience shows that depressant efficacy drops 20 % after six months storage at 30 °C, so winter parcels should be blended no earlier than October for Northern Hemisphere delivery.

FAME and HVO co-processing limits under ISO 8217:2024

FAME and HVO co-processing limits under ISO 8217:2024 introduce bio-components into residual grades for the first time. The new DF and DZ suffix grades permit FAME or HVO in the distillate fraction of the blend, provided the final product meets all Table 1 residual limits including oxidation stability (ISO 12205) and acid number (ASTM D664). HVO is preferred over FAME for residual blending because its saturated chain structure eliminates the oxidation-stability risk that forces FAME blends into dedicated tanks with nitrogen blanketing. Refiners co-process HVO in the hydrocracker at 5–10 % feed rate, yielding a drop-in cutter stock that carries the bio-carbon credit without separate logistics. Bunker suppliers must declare the bio-content percentage on the BDN and retain a 1-liter MARPOL sample for the full 12-month retention period to support Port State Control verification.

Regulatory Framework: IMO 2020, ECA, MARPOL Annex VI, EU MRV and ETS, BDN and Sample Retention

The global sulfur cap limits fuel oil used outside Emission Control Areas to 0.50 % mass by mass since 1 January 2020 under MARPOL Annex VI Regulation 14, according to Ship & Bunker (2019). Inside designated ECAs the limit is 0.10 % mass by mass. High sulfur HFO above 0.50 % may only be burned on vessels fitted with an approved exhaust gas cleaning system (scrubber) that demonstrates equivalent emission performance, as noted by Ship & Bunker (2019). LPFO grades typically fall in the 0.50 % to 1.50 % sulfur range and are therefore legal only for scrubber-equipped ships or for non-IMO regulated markets such as stationary power generation, per Ship & Bunker (2019). Port State Control inspectors verify compliance by checking the Bunker Delivery Note and the retained MARPOL sample against the vessel's fuel oil non-availability report if compliant fuel was not obtainable.

MARPOL Annex VI BDN content and 12-month sample retention

Every bunker delivery must be accompanied by a Bunker Delivery Note that states the supplier name, grade, quantity, density at 15 °C, kinematic viscosity, sulfur content, flash point, hydrogen sulfide content, and pour point. The BDN must be signed by the supplier representative and retained on board for three years. A representative MARPOL sample drawn continuously during delivery through a drip sampler must be sealed, labeled, and retained under the ship's control for 12 months from the delivery date. The sample is the primary evidence in disputes over off-specification fuel and must be made available to Port State Control on request. Failure to retain the sample or producing a BDN with missing mandatory fields constitutes a MARPOL violation that can lead to detention.

EU MRV reporting and ETS allowance surrender for voyages

Ships above 5 000 gross tonnage calling at EU ports must monitor and report CO₂ emissions per voyage under the EU Monitoring Reporting and Verification (MRV) Regulation. From 2024 the EU Emissions Trading System (ETS) requires surrender of EU Allowances for 40 % of reported emissions rising to 70 % in 2025 and 100 % from 2026. The carbon cost applies to 100 % of emissions on voyages between EU ports and 50 % of emissions on voyages between an EU port and a non-EU port. Fuel type directly affects the emission factor used in the MRV calculation; residual grades including HFO and LPFO carry higher default emission factors than distillates. Operators must ensure the BDN fuel grade and sulfur content align with the MRV fuel classification to avoid verification findings and financial penalties.

End-Use and Equipment Requirements: Two-Stroke Engine Profiles, Purifier Sizing, Tank Heating

Fuel oil heater sizing for 100, 150 °C injection viscosity

Two-stroke engines require fuel oil viscosity at the injectors between 10 and 20 cSt which typically demands heating the fuel to 100, 150 °C depending on the grade viscosity at 50 °C. HFO grades such as RMG 380 or RMK 500 need heater capacity to raise temperature from storage conditions around 50 °C to injection temperature within the residence time of the fuel booster unit. LPFO grades with lower viscosity at 50 °C such as RMD 80 or RME 180 require less temperature rise but still need precise control to avoid overheating and vapor lock. Heater sizing must account for the maximum fuel flow at 100 % engine load plus a 15 % margin for fouling. Automatic viscosity controllers on the fuel booster unit adjust steam or thermal oil flow to maintain the target viscosity setpoint.

Purifier bowl selection for cat fines removal efficiency

Centrifugal purifiers remove catalytic fines (aluminum and silicon) that cause excessive cylinder liner wear. The bowl design must match the fuel density and target cat fines concentration. For HFO with density up to 991 kg/m³ at 15 °C a high-gravity disc stack bowl rated for 9 000, 10 000 g-force is standard. LPFO with density below 950 kg/m³ allows use of a lower-gravity bowl but the throughput must be reduced to maintain separation efficiency. Classification societies recommend a minimum of two purifiers in parallel for redundancy with capacity sized above maximum continuous rating fuel consumption. Regular sludge analysis and cat fines trend monitoring via ICP-OES on the MARPOL sample verify purifier performance.

Tank heating coil design and trace heating for LPFO

LPFO pour points can range from 0 °C to 30 °C requiring tank heating coils designed to maintain fuel at least 10 °C above the pour point to ensure pumpability. Coil surface area is calculated from the tank volume, insulation grade, ambient sea temperature, and the fuel specific heat capacity. Trace heating on suction lines and filter housings prevents cold spots during port stays when main tank coils are off. Temperature sensors at the tank bottom and suction bell provide feedback to the integrated automation system which stages coil groups to minimize steam consumption while preventing wax formation.

Conclusion

Match the fuel to the voyage by confirming three variables before the first enquiry: the ISO 8217 grade that satisfies the sulfur band for your trade lane, the pour point that keeps the product pumpable at the coldest port on the route, and the viscosity at 100 °C on the bunker delivery note that sets the injector temperature. Verify the BDN references the correct standard, ISO 8217 for marine, GOST 10585-2013 or DIN 51603-3 for industrial, and require the MARPOL sample and certificate of quality showing cat fines, hydrogen sulfide, and pour-point depressant treat rate. For winter parcels, blend no earlier than October because depressant efficacy drops after six months at 30 °C.

Use the comparison tables to specify the right grade on the first RFQ, then source suppliers through trade shows, government export-promotion bodies, chambers of commerce, and established B2B marketplaces such as Global Trade Plaza. For deeper counterparty verification, cross-reference shipment records with trade data tools. Next step: open the ISO 8217:2024 grade tables in this guide and align each parameter to your engine manual and port-state requirements.

Frequently Asked Questions

what is hfo fuel

Heavy fuel oil (HFO) is the residual fraction remaining after atmospheric and vacuum distillation of crude oil, used as the primary feedstock for marine residual grades. It requires heated storage and high-capacity purifiers to meet engine injection viscosity and cleanliness standards.

what is heavy fuel oil

Heavy fuel oil is the bottom-of-the-barrel residue from crude refining, blended with cutter stock to hit ISO 8217 viscosity grades such as RMG 380 or RMK 500. Its high energy density makes it the dominant fuel for deep-sea shipping equipped with scrubbers or burning VLSFO.

how lPFO vs HFO: Specifications, Grades & Trading Differences works

HFO works by heating the fuel in shipboard tanks and heaters until viscosity drops to 10, 15 cSt at the injector, typically 130 °C for RMG 380. Purifiers then remove water and catalytic fines before the fuel enters the engine combustion chamber.

what lPFO vs HFO: Specifications, Grades & Trading Differences uses

HFO powers large two-stroke marine diesel engines on deep-sea vessels and fuels industrial boilers and power plants with heavy heating infrastructure. Non-scrubbered ships must use the 0.50 % sulfur VLSFO variant to comply with IMO 2020 global limits, according to Ship & Bunker (2019).

hfo heavy fuel oil

HFO heavy fuel oil refers to ISO 8217 residual grades RMG 180 through RMK 700, defined by kinematic viscosity at 50 °C and a maximum sulfur content of 3.50 % for HSFO or 0.50 % for VLSFO, per ExxonMobil Marine (pre-2020) and Ship & Bunker (2019). It dominates global bunker volumes in major hubs like Singapore.

lPFO vs HFO: Specifications, Grades & Trading Differences price

lPFO vs HFO: Specifications, Grades & Trading Differences price tracks the high-sulfur fuel oil crack spread against Brent crude and varies daily by port; VLSFO commands a premium over HSFO reflecting the 0.50 % sulfur cap, according to Ship & Bunker (2019). Buyers negotiate on a metric-tonne basis using Platts or Argus assessments as benchmarks.

hfo heavy fuel oil price

The price for HFO heavy fuel oil follows the same crack-spread dynamics as other residual grades but differs by viscosity grade; RMK 500/700 often trades at a discount to RMG 380 due to heavier heating requirements. Regional supply tightness and scrubber-fleet demand drive short-term spreads.

what is the average price for fuel oil

There is no single average price for fuel oil because residual grades (HFO, VLSFO, LPFO) and distillate grades (MGO, MDO) trade on different crack spreads and sulfur specifications. Procurement teams reference daily bunker publications for the specific grade and port required.

lPFO vs HFO: Specifications, Grades & Trading Differences costs

lPFO vs HFO: Specifications, Grades & Trading Differences costs include the cargo price per metric tonne plus freight, demurrage, bunker survey fees, and any scrubber operating expenditure for HSFO. Total delivered cost determines voyage economics more than the headline cargo price alone.

lPFO vs HFO: Specifications, Grades & Trading Differences cost per litre

HFO is traded in metric tonnes, not litres; converting requires the specific density at 15 °C from the bunker delivery note, typically 0.96, 0.99 kg/L for residual grades. Multiply the USD-per-tonne price by the density to derive a per-litre figure for budgeting.

lPFO vs HFO: Specifications, Grades & Trading Differences documents pdf

Essential HFO documents are the bunker delivery note (BDN), MARPOL Annex VI sealed sample, and certificate of quality showing ISO 8217 test results; these are often exchanged as PDFs during post-delivery verification. Buyers must confirm the BDN references the correct ISO 8217 edition and sulfur limit for the trade lane.

difference between hfo and lpfo

HFO uses 85:15 to 95:5 residue-to-cutter ratios yielding 180, 700 cSt at 50 °C and pour points up to 30 °C, while LPFO uses 70:30 to 50:50 ratios for 10, 60 cSt and pour points at or below 0 °C. LPFO’s lower cat fines (15 mg/kg typical vs 60 mg/kg max) reduce purifier wear, but its higher cutter fraction carries a price premium linked to gas oil cracks.

Sources

• Maritime and Port Authority of Singapore (via Baird Maritime) (2025): Singapore total marine fuel (bunker) sales
• Ship & Bunker (2019): Global marine fuel demand affected by IMO 2020
• ExxonMobil Marine (pre-2020): IMO global marine fuel sulphur cap