10 bestOil Additivesof August 2026
112M consumers helped this year.
5% off
1
Archoil AR6500 Diesel Treatment (40 oz) Treats 400 Gallons, Diesel Fuel Additive - Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster
Archoil
9.8
2
Archoil Diesel Fuel System Kit - AR6400-D (12 oz) + AR6500 (40 oz) - Complete Restoration For All Diesel Engines, Injector Cleaner, Lubricity Improver, DPF & Turbo Deposit Control, Cetane Booster
Archoil
9.6
21% off
3
Set Of 2 Liqui Moly (3721) Cera Tec Friction Modifier - 300 ml by Liqui Moly
Liqui Moly
9.3
4
Red Line 80301-12PK Limited Slip Friction Modifier - 4 Ounce, (Pack of 12)
Red Line
9.1
5% off
5
Archoil AR6400-D Diesel Fuel System Cleaner (12 oz) Two Pack - Rapid Injector Cleaner, Turbo & DPF Deposit Control
Archoil
8.8
10% off
6
Liqui Moly Ceratec Oil Additive Treatment Ceramic Wear Protection 300ml
Liqui Moly
8.5
5% off
7
Archoil AR9100 Oil Additive (16 oz) for All Engines - Power Stroke Stiction Treatment, Friction Modifier, Anti-Wear Protection
Archoil
8.3
8
Lucas Oil H/D Oil Stabilizer/12x1/Quart, Multi, One Size (10001)
Lucas Oil
8.0
9
LIQUI MOLY - 300mL MoS2 Anti-Friction Engine Treatment (2009)
Liqui Moly
7.7
10
Liqui Moly 20004 Hydraulic Lifter Addtive (2 Pack)
Liqui Moly
7.4
Related Reviews You Might Like
Best Reviews Guide Newsletter
Get exclusive articles, recommendations, shopping tips, and sales alerts
Sign up for our newsletter to receive weekly recommendations about seasonal and trendy products
Thank you for subscribing!
By submitting your email address you agree to our Terms and Conditions and Privacy Policy