Collection: Gasoline & Hybrid

Find catalytic converter cleaners, fuel-system treatments and specialist formulas for gasoline and hybrid engines. Compare fuel-tank additives, direct-application cleaners and complete treatment kits by the system you need to maintain.

Choose by application: fuel additives go in the fuel tank; engine flushes go in the oil system before an oil change; direct cleaners require the application described on the product label. Check vehicle compatibility and instructions before use.

For diesel particulate filters, explore our Diesel range. A diagnostic trouble code can have several causes; cleaning products cannot repair a physically damaged component.