10 Best Diesel Oil Additives - May 2026

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Last Updated: 05-06-2026

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Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (1QT)

Prolube

9.8

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Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (16oz)

Prolube

9.6

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Best value

TriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine Lube - Makes High Mileage Cars Like New with a Synthetic Material (Treats One Regular Truck, Tractor or Small Diesel)

TriboTEX

9.5

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Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems

Archoil

9.2

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LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Performance, Less Friction & Lower Fuel Consumption 300 ml

Liqui Moly

9.1

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Archoil AR6500 Diesel Treatment (40 oz) Treats 400 Gallons, Diesel Fuel Additive - Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster

Archoil

8.8

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Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 2009

Liqui Moly

8.6

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Hot Shot’s Secret Everyday Diesel Treatment EDT 16 oz Squeeze – Treats 400 Gallons – 6-in-1 Diesel Fuel Additive, Injector and Fuel System Cleaner, Boosts Cetane

Hot Shot's Secret

8.4

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Hot Shot’s Secret Original Stiction Eliminator 32 oz – Treats 16 Quarts of Oil – Oil Additive for Gas & Diesel Engines, Reduces Wear, Restores Power, Protects Injectors, Eliminates Injector Stiction

Hot Shot's Secret

8.2

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REV-X Stiction Fix Oil Treatment - 4 fl. oz. (2 Pack)

REV X

8.1

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