STP Engine Flush is specially formulated to rapidly dissolve harmful engine deposits and maintain efficient oil circulation throughout the entire engine, helping to protect vital engine wear surfaces throughout the flush.STP Engine Flush is specially formulated to be added to old dirty engine oil just prior to an o...

STP® ENGINE STOP LEAK Rejuvenates seals and gaskets and helps fortify oil with a viscosity enhancer. REJUVENATES SEALS AND GASKETS HELPS STOP MINOR OIL LEAKS FORTIFIES OIL WITH VISCOSITY ENHANCER LUBRICATES MOVING ENGINE PARTS Over time, normal engine operation can lead to oil leaks. These occur when heat...

Fights friction to help protect against engine wear by providing a thicker cushion between moving engine parts. This high-viscosity formula is specially formulated to help fight metal-to-metal friction by providing a thicker cushion between moving engine parts. Helps Protect against engine wear Reduce oil consumpti...

Fights friction to help protect against engine wear by providing a thicker cushion between moving engine parts. This high-viscosity formula is specially formulated to help fight metal-to-metal friction by providing a thicker cushion between moving engine parts. Helps Protect against engine wear Reduce oil consumpti...

STP Synthetic Oil Treatment 300ml STP Synthetic Oil Treatment 300ml delivers all the benefits of our traditional oil treatment but has been re-formulated for petrol and diesel oils and is low SAP compatible. STP Synthetic Oil Treatment 300ml  • Reduce engine wear by reducing piston deposits• Reduce oil consumption• ...

STP® Ultra 5-IN-1 High Performance Engine Treatment, the most advanced STP® Oil Additive ever made. FORMULATED TO HELP MAINTAIN MAXIMUM HORSEPOWER ENHANCE OIL DURABILITY CLEAN AND PREVENT SLUDGE PREVENT POWER-ROBBING FRICTION, HEAT AND WEAR PROTECT AGAINST RUST AND CORROSION   Size: 473ml Since 1954, STP® o...