10 bestOil Additive For Engine Knockof August 2026

Archoil AR9100 Oil Additive (16 oz) for All Engines - Power Stroke Stiction Treatment, Friction Modifier, Anti-Wear Protection

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

LIQUI MOLY - 300mL MoS2 Anti-Friction Engine Treatment (2009)

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)

Bg Products MOA & EPR Motor Oil Additive Lubrication Supplement Engine Restore

3 cans of BG EPR Engine Performance Restoration

Lucas LUC10130 Synthetic Oil Stabilizer. Quart

Rislone 4102 Xtreme LUBE® Maximum Performance Engine Treatment, 16.9 oz, 5-Pack

ZDDP - ZINC Oil Additive - 2 oz. (5)