Petrol direct injection engines suffer from oil and fuel-based heavy deposits. Direct Injection engines need up-to-date chemistry and safety assured service procedures.

Sticky, heavy deposits build rapidly on the backs of valves and in air intake systems of petrol direct injection (GDI) engines. Cleaning intake valves requires a potent formula applied with proper equipment, due to both the placement of the injector inside the combustion chamber and the complexity of the intake design.

High operating temperatures, reduced engine cooling and prolonged drain intervals contribute to oil thickening, heat retention and deposit formation. These heavy deposits can impede normal piston ring function; thus reducing fuel economy, lowering power output, and increasing harmful exhaust emissions and oil consumption.

Petrol Direct Injection engines are specifically prone to early deposit buildup on the piston surface, intake ports, injector tips and valves. As early as 32,000 km, deposits in GDI engines can cause dramatic efficiency losses and misfire codes with low km. Australian specific conditions such as heat and low-quality fuel hasten engine oil degradation. Add extended oil change intervals and these engines provide a lengthy incubation period for carbon deposits. Even high-quality synthetic oils will degrade eventually. Unless the oil is fortified with enhanced protection against high heat, premature and hard-to-remove deposits will form on many engine components.

Australian petrol fuel standard is far from world standard, resulting in faster deposit buildup and inefficient ignition, combustion and power output. In fact, Australian Petrol fuel can contain up to 15 times more sulphur than the rest of the developed countries. Downsized, boosted engines are extremely sensitive to deposits that build up in fuel injectors, intake ports, on intake valves and in combustion chambers. Even small amounts of deposits cause increased exhaust emissions, reduced fuel economy, and drivability problems.

Typical in almost all automotive cooling systems is the eventual formation of rust, scale or other corrosion by-products. Even the slightest build-up of these materials on heat transfer surfaces can drastically affect the engine’s ability to shed heat and thus, decrease the overall effectiveness of the cooling system. Rust, oil and scale build-up will also restrict the flow of coolant through the system, causing overheating and possible engine damage.

Over time, the protective additives in an engine coolant become depleted, thus rendering the coolant acidic and incapable of protecting the components in the system. This results in damaging corrosion in the formation of rust, scale and other debris that prevent proper engine temperature regulation. Left untreated, this condition may cause leaks, overheating, and, if left unchecked, drivability problems.