10 bestOil Additivesof August 2025
112M consumers helped this year.
1

Archoil AR6400-D Diesel Fuel System Cleaner (Two Pack) - Cleans Injectors, Turbo & DPF…
Archoil

9.9
2

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

9.8
3

Liqui Moly 20004 Hydraulic Lifter Additive
Liqui Moly

9.6
4

Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml
Liqui Moly

9.3
5

Liqui Moly 2020 Motor Oil Saver - 300 ml
Liqui Moly

9.1
OtherUp to 21% off
11% off
6

*H/D Oil Stabilizer/4x1/Gallon
Lucas Oil

8.9
7

Lucas Oil H/D Oil Stabilizer/12x1/Quart, Multi, One Size (10001)
Lucas Oil

8.6
8

STP High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 fl oz, Contains ZDDP Anti-Wear Agent to Fight Friction, Rejuvenates Seals and Gaskets, Stops Leaks
STP

8.3
9

Lucas LUC10130 Synthetic Oil Stabilizer. Quart
Lucas Oil

8.0
6% off
10

Lucas Oil 10063 Engine Break-In Oil Additive - 16 oz
LUCAS

7.8

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