Top of the tests: JLM GDI Injector Cleaner

Published:  06 May, 2020

JLM Lubricants has developed a GDI Injector Cleaner that’s been tested by Millbrook Proving Ground in Bedfordshire

Gasoline Direct Injection (GDI) engines perform better, are more economical and more environmentally friendly than indirect-injected petrol engines. However directly injected combustion engines become dirty internally at a much faster rate than indirect-injected petrol engines.

According to Gilbert Groot, founder of JLM Lubricants, rectifying the root-cause is not straightforward: “As the fuel injectors are exposed to heat and the by-products of the combustion process, contaminations become baked onto the injector tip, blocking its fine holes - diameters are smaller than a human hair - and altering the spray pattern. Sophisticated engine management will compensate for this injector fouling by adjusting the fuelling automatically but only to a point. When the long term fuel trim deviates beyond a typical 25% from its standard setting, the engine warning lamp is likely to illuminate, accompanied by the reduced power 'limp home' mode. The challenges we faced were to address the symptoms and affect a cure and curtail future build-up. We rose to this and after extensive research and testing, the JLM GDI Cleaner was developed to remove stubborn build-up of dirt and to ensure that valuable parts in the engine stay clean.

“With our GDI Cleaner we are offering the professional motor mechanic a unique one shot in-tank additive that has been developed with a 90 strong laboratory/testing team from a world class publicly listed company. It addresses a problem that is set to grow year on year. As the contamination process of a GDI engine is gradual the first issue that many owners report is either an illuminated engine management light, reduced power or excessive exhaust emissions causing failure at the MOT stage. Thereafter the first port of call for a fix is a professional motor mechanic”

 No need to remove the Injector

“The JLM GDI Injector Cleaner addresses the aforementioned problems by cleaning the inside of the injectors and the injector mouth, restoring fuel economy and lowering emissions. It offers mechanics a fully tested solution to a growing problem. Until now the options have been complex and expensive because of the need to remove the injector from the engine. And with more complicated injectors there’s the very real risk of damaging the vehicle when trying to remove it, notwithstanding that injectors are expensive to replace.  By contrast, With the JLM GDI cleaner the application process is simple; shake the bottle, pour in the tank and test drive. It can also be used as a maintenance product on a ‘prevention before cure’ basis making it a must have in every workshop.”

Testing with top results

“Laboratory tests at the Millbrook Proving Ground in Bedfordshire during 2019 proved that JLM's GDI Injector Cleaner gave a faster and more complete clean-up performance, compared to other detergent technologies that tend not to focus on the contamination issues that GDI technology causes. The JLM GDI Injector Cleaning technology was tested against the leading traditional gasoline detergent technologies/ chemistries. 

“Our chemical formulation has been specifically designed for GDI application, whereas other detergents are for IVD and may (or may not) give limited GDI benefit. And for the professional workshop the speed at which the GDI Cleaner works is an important benefit,” says Gilbert.

“During testing, the active ingredients were shown to remove and inhibit fuel injector contamination. Fuel consumption was also shown to have decreased by just over 4% during the tests. Particulate emissions reduced too. This was the reason why deposits levels within the intake manifold and behind the inlet valves were shown not to have increased during the tests with reduced soot levels being introduced via the exhaust gas recirculation (EGR) valve. Particulate reduction also highlights the environmental benefit of using this product regularly in a preventative capacity.”

Optimal combustion benefits

“Because the JLM GDI Cleaner cleans the extremely small nozzle-openings of the gasoline injector nozzles it enables the injector to continue to atomise petrol perfectly so that combustion is optimal. Because combustion by the clean injectors remains optimal, there is much less soot, carbon, oil and other dirt 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. Because combustion is optimal, fuel consumption and exhaust gas emissions remain at the same level as that of a new engine.

“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” added Gilbert.

He continued: “We are confident that our GDI Injector cleaner is the finest on the market but admit it cannot resolve all contamination issues in modern engines.

“Deposits that restrict low tension piston ring movement are best addressed with JLM's Engine Oil Flush at every service, to restore the resultant lost compression. While more complete combustion has the additional benefit of reducing inlet deposits, JLM's GDI Injector Cleaner cannot clean clogged intake manifolds, EGR valves and cylinder head ports. For this, JLM recommends its Air Intake Cleaner both as a cleaner and a preventative measure at service time. With this combination of products I believe we are offering workshops the complete GDI decontamination cure to benefit motorists, their cars and, of course, the environment.”

Other product benefits

• The JLM GDI Injector Cleaner cleans injector nozzles of all directly injected GDI, FSI, and TFSI, CGI and SIDI Euro 6/VI + engines

• Because the engines are cleaned internally, they will perform as if new again, and the fuel consumption and the PN, NOx and CO2 emissions will be reduced

• The product also contains a friction modifier for instantaneous 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. 60ltr.)

 UK response

So what has been the initial reaction to the GDI cleaner from motor factors and mechanics in the UK? Mike Schlup, Managing Director of Kalimex the sole UK distributor for JLM Lubricants products is happy to report a sell-out, commenting: “We had significant interest from mechanics and stockists in the early stages of promoting this product such that when we received the initial stock from Amsterdam it sold out within three days. Demand has been high since then with the growing awareness of its properties and testing credentials. It is very much a product that has been launched at the right time. Motorists now more than ever are looking to their garage for solutions that are effective and easy to apply so their bill post fix is manageable. And given the global economic squeeze is likely to continue for several months they will be keeping their vehicles on the road for longer. The repair culture will prevail over the replace one.” 

The JLM GDI Cleaner is distributed in the UK by Kalimex. Please email  or call 01273 891162 to find out more and to request a free sample of this product (whilst giveaway stocks last).

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