GDI engines require specialised injector cleaners

JLM explains Gasoline Direct Injection (GDI) engines have revolutionised the automotive industry by offering improved fuel efficiency and enhanced performance.
However, these technological advancements come with their own set of challenges, particularly concerning carbon deposit buildup.

Understanding the differences between GDI and MPI engines
In Multi Point Injection (MPI) engines, fuel is injected into the intake manifold where it mixes with air before entering the combustion chamber. This process allows fuel to wash over the intake valves, keeping them relatively clean.
In Gasoline Direct Injection (GDI) engines fuel is injected directly into the combustion chamber at high pressure.
This design improves fuel atomisation and combustion efficiency, leading to better performance and fuel economy.
However, because fuel does not pass over the intake valves, the GDI valves are more susceptible to carbon buildup.

Problem number one: carbon buildup on intake valves
Since these GDI engines’ valves are not exposed to fuel, they do not benefit from the cleaning properties of traditional fuel additives.
Over time, oil vapours from the crankcase ventilation system and exhaust gas recirculation (EGR) systems can lead to the formation of stubborn carbon deposits on the intake valves. 
JLM says the remedy is regular treatment with a valve cleaning solution, like JLM’s Direct Injection Valve Cleaner, specifically designed to remove these GDI deposits.

Problem number two: injector deposits
GDI injectors, which operate at much higher pressures than MPI injectors, are also prone to carbon deposits which can affect the spray pattern and fuel atomisation, leading to incomplete combustion, increased emissions, and poor engine performance. 
JLM explains that dedicated GDI injector cleaners, such as JLM’s GDI Injector Cleaner, are specifically formulated to address this problem.

Investing in the right cleaner
While traditional injector cleaning additives are effective for MPI engines, JLM says they fall short in addressing the unique challenges posed by GDI systems.
GDI-specific injector cleaners are designed to work under high-pressure conditions ensuring the additives can reach and clean all critical components without causing damage or leaving residues. 
By using the right products, JLM says you can keep your GDI engine running smoothly and enjoy the benefits of this innovative technology for years to come.

For more information on JLM products visit www.jlmlubricants.com.au