JLM Lubricants

JLM GDI Injector Cleaner


 / 250ml

  • For all Gasoline Direct Injection Systems
  • Excellent Nozzle Cleanliness
  • Cleans the Inside of GDI Injector
  • Reduce Emissions PN, NOx, CO2
  • Suitable for Euro 6/VI+ Exhaust Emissions Std.
JLM GDI Injector Cleaner J03170 JLM LUBRICANTS

The JLM GDI Injector Cleaner has specifically been developed for the latest generation of GDi engines. The JLM GDI Injector Cleaner not only cleans existing injector deposits, it also stops the build-up of future deposits, so complex injection systems always operate at maximum efficiency. In demanding, new industry engine tests, the JLM GDI Injector Cleaner delivers exceptional best-in-class performance.

Product information

Today’s gasoline direct injection (GDi) engines offer improved fuel economy and lower emissions. That’s why more engine and vehicle manufacturers are switching to GDI technology to ensure compliance with ever-lower emissions targets and the driving expectations of their customers. But these high pressure & high performance engines operate to very tight tolerances. Experience tells us such precision components need protecting if the engine is to perform exactly as intended.

Conventional injector cleaners have been created and tested for indirect injected or the so called Port Fuel Injected (PFI) engines and the problems of intake valve deposits (IVD). These chemistries are not developed for deposit control in modern GDI engine technology and will not provide optimum engine protection. Therefore we have developed the JLM GDI Injector Cleaner. Since inception, GDI engines have had known problems with coking—build-up of cooked fuel deposits that foul injectors.

The GDI problems are mainly caused by the higher cylinder temperatures and pressures released into the crankcase which accelerate oil vaporization. Eventually this causes oil droplets to coat the intake valves and injectors. The location and angle of the fuel injectors in GDI systems mean that fresh fuel is not sprayed onto intake valves, so it doesn’t “clean” or cool them by preventing vapour build-up. As a result, this build-up can accumulate and bake onto intake valves and injectors in as little as 16,000 km (10,000 miles).

E10 Fuels
In short, it’s a real problem and is further exacerbated by modern fuels with up to 10 percent ethanol. The initial problem is indicated by poor performance and knocking. Using a fuel without optimized GDI additive technology is likely to lead to fouled injectors and compromised critical engine efficiency. Engine performance drops, fuel economy falters and emissions rise.

With JLM’s novel and cutting-edge fuel additive technology, engine performance is reliably maintained over the whole life of the vehicle. By removing deposits and keeping the injector system clean, the engine will continue to perform as expected.

The JLM GDI Injector Cleaner
– Removes existing injector deposits
– Prevents injector fouling
– Dramatically reduces particle emissions
– Increases fuel efficiency
– Preserves engine power
– Maintains optimum reliability

And is suitable for all GDI, FSI, TSI, CGI, SIGI engine types.


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JLM Lubricants

Great addition

"This is a great addition to the products in my workshop. We continuously see fantastic results in the recovery of emissions and engine performance, among other things."

- Paul Finn

JLM Lubricants


"I was very skeptical, but after using the product and starting my car, I couldn't believe my eyes ... the yellow light in my car was no longer on!"

- Kevin Kalo

JLM Fixing cars

Surprising­ly good

"I never thought that JLM would surprise me so much. It gets better and better every time. I will continue to use these products. The fantastic results speak for themselves. Keep up the great work."

- Andrew Watts


These are the most common questions we get.

Do any of the JLM additives help the performance of the high pressure diesel fuel pump?

J02330 Rapid is perfect for pump and injectors!

Is it OK to use the JLM Extreme Clean and the DPF Cleaner together?

No, this will not have a positive effect. In fact it may cause an adverse effect. And also the risk of overdosing! Never combine fuel additives


Will JLM Bluboost dissolve existing crystal infestation or is it more like a preventative product?

JLM’s Bluboost additive cleans and prevents crystal formation in the AdBlue® dosing system. It also conditions the AdBlue® fluid for a longer time to ensure proper working of the AdBlue® and SCR system. This helps prevent performance loss and the often-subsequent expensive repairs. It also reduces foaming at low temperatures

Is the JLM Engine Oil Flush safe for use with wet belt engines?

Our JLM OIL FLUSH is safe to use with ‘wet belts’ (TBIO). This is mainly because we use non solvent and premium pack of oil cleaning additives.


Does the Petrol Emissions Reduction Treatment also clean the catalytic convertor?

The catalytic converter is not a filter, it functions by converting harmful emission gases into less harmful gases. The filter can become contaminated if for example there has been an oil leak, and when this happens the filter needs to be replaced. There is no additive or chemical that will remove physical contamination from a catalytic.

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