Valvoline Professional Series Heavy Duty Diesel System Complete cleans and restores the complete fuel system of heavy-duty diesel engines, restoring the engine back to its original power and performance. The product protects against deposit formation while the flow improver guarantees a smooth start-up at cold temperatures. The chemical composition stabilizes the fuel and prevents fuel ageing and bacterial contamination.

VPS HD Diesel System Cleaner is applicable to all diesel engines of the passenger cars. It is highly recommended for both low and high-sulfur diesel fuels. The low-sulfur diesel contains a high concentration of water, causing corrosion, while the high-sulfur one wears the engine. Regardless of the type of the diesel fuel you use, Valvoline Professional Series Heavy Duty Diesel System Complete will cleanse the entire fuel injection system.

It is best to be used prior to all adjustment work and admission metrology. The cleaner should be applied to:

• Address emission readings issues
• Reduce soot generation
• Perform repair work on injection systems
• Increase engine performance