10 Best Engine & Parts Fluid Cleaners 2025

As a parts cleaner expert, we've reviewed and scored many products in the Engine & Parts Fluid Cleaners category, ranging from a 7.3 score up to an impressive 9.8 score. But there can only be one top-rated product, and that honor goes to Lucas Oil. Their Extreme Duty CLP Aerosol Case (12 x 11oz.), 1 Pack is a game-changer in the world of engine and parts cleaners. Not only is it highly effective at removing grime and buildup, but it also protects against rust and corrosion. With Lucas Oil, you can trust that your engine and parts will remain in top condition for longer. But don't just take our word for it, check out our full list of top ten Engine & Parts Fluid Cleaners and see for yourself why Lucas Oil reigns supreme.