10 Best Engine & Oil Fluid Additives 2025

Welcome to our Top 10 Product Reviews for Engine & Oil Fluid Additives, where we've scoured the market for the best products to give your engine the boost it needs. With many products ranging from a score of 7.3 up to a top-scoring 9.5, we've found the cream of the crop for you. Our top-rated product comes from the trusted brand Lucas Oil - their Heavy Duty Oil Stabilizer is a game-changer for any vehicle. This powerful formula reduces oil consumption and engine noise, while increasing overall performance and extending the life of your engine. Don't settle for a subpar driving experience - try Lucas Oil 10001 Heavy Duty Oil Stabilizer today!