STP^® Super Concentrated High Mileage Engine Flush is scientifically engineered to improve the oil drain for vehicles over 75K miles. The super concentrated cleaning agents actively clean deposits in the engine and help reduce sludge and varnish on cylinder heads. The high-quality base stock is the carriers of active ingredients.

Directions for Use

Allow the car’s engine to run until it reaches normal operating temperature, turn engine off, then pour entire bottle into oil crankcase (treats 3-5L). The engine should run for 5 to 15 minutes at idle to circulate flush. DO NOT DRIVE VEHICLE. Drain crankcase and remove the oil filter. Replace drain plug and install the new oil filter. Refill crankcase with new motor oil.

Usage Frequency

Safe to use with every oil change when used as directed.

Take Note!

Will not harm seals. For use with gasoline or diesel engines, conventional and synthetic motor oils.