March 2020

W hile gasoline direct injection (GDI) engines perform better, are more economical and more environmentally friendly than indirect-injected petrol engines, the directly injected combustion engines also get dirty faster internally. The JLM GDI Cleaner was developed to remove this dirt build-up. Gilbert Groot, founder of JLM, commented: “It addresses a problem that is set to grow. Modern petrol cars, are in the main, equipped with direct fuel injection. That presents problems that traditional fuel deposit control additives cannot solve. Tighter component tolerances and higher soot/particulate production make GDI engines highly sensitive to contamination as they age. “As the fuel injectors are exposed to heat and by-products of the combustion process, contamination becomes baked onto the injector tip, blocking its fine holes and altering the spray pattern. Engine management will compensate for this by adjusting the fuelling automatically. Yet, when the long-term fuel trim deviates beyond a typical 25% from its standard setting, the engine warning light is likely to illuminate, accompanied by the reduced power 'limp home' mode.” The JLM GDI Injector Cleaner addresses these problems by cleaning the inside of the injectors and the injector aperture, restoring fuel economy and lowering emissions. “It offers mechanics a fully tested and unique solution to a growing problem,” continued Gilbert. “Until now the options have been complex and expensive because the injector has to be taken out of the engine. With more complicated injectors, there’s a risk of damaging the vehicle when trying to remove it, notwithstanding that injectors are expensive to replace. With the GDI cleaner the application process is simple; shake the bottle, pour into the fuel tank and drive. It can also be used as a maintenance product on a ‘prevention before cure’ basis.” Testing According to JLM, laboratory tests throughout 2019 at the Millbrook 32 AFTERMARKET MARCH 2020 TECHNICAL www.aftermarketonline.net JLM LAUNCH GDI INJECTOR CLEANER The growth in the deployment of GDI has JLM Lubricants to introduce a special GDI Injector Cleaner Proving Ground demonstrated that the GDI Injector Cleaner's active ingredients were effective at removing and inhibiting fuel injector contamination and at improving fuel consumption by 4%. Particulate emissions were also reduced. “For the professional workshop an important benefit is the speed at which the additive works,” observed Gilbert. “On real vehicles in real workshops and within one hour of application the injection time and the emissions were restored to the factory settings on all vehicles tested.” “The tests also showed that the formulation gave a faster and more complete clean-up performance, compared to other detergent technologies that may, or may not, have only partial benefits for GDI. Because this product cleans the extremely small nozzle-openings of the gasoline injector nozzles it enables the injector to continue to atomise petrol perfectly so that combustion remains optimal. Because combustion stays clean, this results in less soot, carbon, oil and other contaminants that can adhere to other essential parts, such as valves and piston rings. The logical consequence of this is that the product not only cleans the injectors, but also cleans the entire combustion chamber and keeps it clean. Benefits “The JLM GDI Injector Cleaner cleans injector nozzles of all directly injected GDI, FSI, TFSI, CGI and SIDI Euro 6/VI+ engines,” concluded Gilbert. “The product also contains a friction modifier for fuel economy benefit, a demulsifier to minimise water pick up, a corrosion inhibitor and an antioxidant for enhanced fuel stability. A 250ml bottle treats one full tank of petrol (approx. 60 litres.)” www.jlmlubricants.com FREE SAMPLE: To obtain a free sample of JLM GDI Cleaner from UK distributors Kalimex, email enquiries@kalimex.co.uk or call 01273 891162