Outstanding protection and performance from a name that has been trusted for over a century – Sinclair.

A vehicle using Sinclair Complete Fuel System Cleaner will benefit from reduced friction and fuel costs. Our formula actually improves gasoline quality by adding cleaning agents directly into the fuel system to fight harmful carbon buildup and deposits of gum and varnish that rob your vehicle’s performance.

Performance You'll Notice

As technology advances, so do the engine and vehicle system designs from OEMs. One brand has advanced right alongside. Sinclair’s advanced fluids meet the demands and challenges of balancing protection, toughness and endurance.

Your Vehicle Deserves Our Very Best

Extend the life and improve the performance of your vehicle with automotive fluids from Sinclair.