Fuel System & Fuel Additives, Basic Maintenance

Find out more about how your car’s fuel system works and which STP® products could help prevent, remove or deep-clean deposits from your vehicle.

MAX-CLEAN® Royal Purple

Hy-per Fuel Complete Fuel System Cleaner

The clever way to purchase 2 very popular products, at a value-for-money price! Reinvigorate your diesel engine –, remove sludge and hard carbon from

Flushing Oil Concentrate & ULS Diesel Enhancer Value Pack™

Hy-per Fuel Complete Fuel System Cleaner

Hy-per Fuel Complete Fuel System Cleaner

Diesel Fuel System Treatment, No. 4740

The Importance of Fuel Additives

Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6oz

Rislone Petrol Fuel System Treatment 500mL - 44700 - Rislone