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10 Best oil fluid additives of 2026
Save up to 44% off
Best Choice1
Prolube9.8Exceptional
Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (1Gallon)
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Value for Money2
TriboTEX9.7Exceptional
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)
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is discontinued by manufacturer: No
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product dimensions: 6.95 x 1.15 x 0.7 inches
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manufacturer part number: syx120
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country of origin: USA
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item weight: 0.634 ounces
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3
Liqui Moly9.6Exceptional
Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 2009
44% Off-
is discontinued by manufacturer: No
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product dimensions:N/A
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manufacturer part number: 2009
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country of origin: Germany
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item weight: 6.4 ounces
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4
Prolube9.5Excellent
Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (1QT)
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5
Lucas Oil9.3Excellent
Lucas Oil 10001 Heavy Duty Oil Stabilizer - 1 Quart
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is discontinued by manufacturer: No
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product dimensions: 10.12 x 3.14 x 2.67 inches
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manufacturer part number: 10001
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country of origin: USA
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item weight: 2.03 pounds
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6
Liqui Moly9.2Excellent
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
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is discontinued by manufacturer: No
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product dimensions: 2.5 x 1 x 3 inches
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manufacturer part number: P000017
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country of origin:N/A
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item weight: 10.6 ounces
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7
Liqui Moly9.1Excellent
Liqui Moly Hydraulic Lifter Additive | 300 ml | Oil additive | SKU: 8367
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product dimensions:4.72 x 2.36 x 2.36 inches
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exterior:Machined
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item weight:10.6 ounces
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oem part number:2770
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item model number:8367
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8
Prolube9.0Excellent
Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (16oz)
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is discontinued by manufacturer:N/A
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product dimensions:N/A
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manufacturer part number:PLO-TRT-16OZ
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country of origin:N/A
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item weight:1.1 pounds
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9
Lucas Oil8.8Very Good
Lucas Oil 10013 Fuel Treatment - 1 Gallon
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Function:Cleans and lubricates fuel system
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Compatibility:Gasoline and diesel engines
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Compliance:Complies with federal low sulfur content requirements
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Application:Fuel Treatment
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Volume:1 Gallon
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10
Liqui Moly8.6Very Good
LiquiMoly 3721 Engine Oil Additive
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is discontinued by manufacturer: No
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product dimensions:N/A
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manufacturer part number: 3721
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country of origin:N/A
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item weight: 12 ounces
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