Fuel Additives
Octane Boosters: Increase fuel octane rating (e.g., Boost Octane Booster).
Fuel Injector Cleaners: Clean fuel injectors and improve combustion (e.g., Chevron Techron).
Fuel Injector Cleaners: Clean fuel injectors and improve combustion (e.g., Chevron Techron).
Oil Additives
Engine Oil Additives: Enhance lubricating properties (e.g., ZDDP additives for anti-wear).
Viscosity Improvers: Maintain oil viscosity across temperature changes (e.g., polyisobutylene).
Viscosity Improvers: Maintain oil viscosity across temperature changes (e.g., polyisobutylene).
Coolant Additives
Corrosion Inhibitors: Protect cooling system components (e.g., Prestone Super Radiator Cleaner).
Anti-Freeze Agents: Lower the freezing point of coolant (e.g., ethylene glycol).
Anti-Freeze Agents: Lower the freezing point of coolant (e.g., ethylene glycol).
Transmission Additives
Transmission Fluid Enhancers: Improve shifting performance (e.g., Lucas Transmission Fix).
Seal Conditioners: Prevent leaks from seals (e.g., ATP AT-205 Re-Seal).
Seal Conditioners: Prevent leaks from seals (e.g., ATP AT-205 Re-Seal).
Brake Additives
Brake Fluid Additives: Improve the boiling point and lubricity (e.g., Castrol Brake Fluid).
Anti-Squeal Additives: Reduce noise from brake pads (e.g., anti-squeal shims).
Anti-Squeal Additives: Reduce noise from brake pads (e.g., anti-squeal shims).
Cleaning Additives
Engine Cleaners: Remove sludge and deposits (e.g., Seafoam Motor Treatment).
Fuel System Cleaners: Clean intake valves and combustion chambers (e.g., BG 44K).
Fuel System Cleaners: Clean intake valves and combustion chambers (e.g., BG 44K).
Performance Additives
Nitrous Oxide: Used in racing for increased power (e.g., NOS Nitrous Systems).
Supercharger Lubricants: Enhance performance of supercharged engines (e.g., Royal Purple Supercharger Oil).
Supercharger Lubricants: Enhance performance of supercharged engines (e.g., Royal Purple Supercharger Oil).

