10 bestOil Additive For Engine Knockof December 2025
112M consumers helped this year.
5% off
1

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

9.8
11% off
2

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

9.6
3

3 cans of BG EPR Engine Performance Restoration
BG(0002698761)

9.3
4

REV X ZDDP Oil Additive - Zinc & Phosphorus (5 Pack)
REV X

9.0
5

Rislone High Mileage Engine Treatment, (Pack of 5)
Rislone

8.8
Other
6

Bg Products MOA & EPR Motor Oil Additive Lubrication Supplement Engine Restore
BG(0002698761)

8.5
6% off
7

BG MOA Motor Oil Additive 11oz (3 Pack)
B&G

8.2
8

Liqui Moly (20002) Cera Tec Friction Modifier - 300 ml
Liqui Moly

7.9
15% off
9

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

7.6
10

5 - Pack Bg MOA Motor Oil Additive (5) 11oz. Cans
BG

7.3
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