10 bestAi Engine Additivesof November 2025

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)

XADO Engine Oil Additive - Protection For Engines - Additive For Wear Protection & Rebuilding Of Worn Metal Surfaces - Metal Conditioner With Revitalizant 1 Stage Maximum (Up To 5qt Of Oil Capacity)

Bardahl B2 Engine Protection Motor Oil Additive - Zinc Engine Restore & Oil Burning Guard - Oil Treatment Designed to Lubricate & Reduce Wear on Older Cars & High Mileage Engines - 12 fl oz (12 Pack)

Oktis - 2 Portable Fuel Analyzer Tester Meter Octane Number Gasoline Petrol Control OKTIS 2

XADO Engine Oil System Cleaner with Anti-Carbon Effect - Removes Contamination & Engine Sludge - ATOMEX Total Flush Revitalizant (Bottle, 250ml)

TriboTEX Oil Additive Diesel Truck Engine Treatment: Add to Engine Oil - Makes High Mileage Pickups Like New with a Synthetic Material (Treats One Big Diesel Truck) Make Your Truck More Heavy Duty

STP Super Concentrated Fuel Injector Cleaner Fuel Additive, 155ml

XADO Engine Oil additive - Protection for Engines - additive for wear Protection & rebuilding of Worn Metal Surfaces - Metal Conditioner w. Revitalizant 1Stage Maximum SUV (up to 10qt of Oil Capacity)

XADO Engine Oil Additive 1 Stage - Friction Modifier - Motor Restore Treatment - Performance Restoration - Protects Against Cold-Start Damage - For Gas, Diesel and LPG Engines - Revitalizant (Blister)