Liqui MolyDiesel Purge | 1 L | Fuel additive | SKU: 2520

Having worked on different engines over the years I have used a multitude of cleaners for the fuel systems. However I now only use Liqui moly. I don’t know what’s in this stuff but it certainly does the job. I used the last bottle on a Mondeo mk4 1.8 tdci with 136,000 miles on the clock. I purged the injectors buy filling the fuel filter with the cleaner. Then added the rest to the tank. The results are clear. Smoother running, smoother drive and a noticeable power return. Faultless

I find a lot of products to be gimmicks but after fitting PD150 injectors to my 115 I had a knock coming from them due to sitting around.Normal driving would not clear it but running this directly did the trick, if you have a in tank pump just loop the filter, on the feed line fit a motorbike style filter as there is a lot of crud coming out the return, put both the feed and return pipe into the bottle and run the engine purely on diesel purge.If you have no issues maybe you will not notice a difference but on higher mileage / noisy injectors this really does work. I used the 1ltr version

I am using this product once a year to clean diesel intake system.The engine is much more responsive and runs much smoother.It seems also helping to keep the EGR valve clean

I was unable to use this in the recommended way of disconnecting the fuel line on my Volvo v70 d5 185hp .so I changed the fuel filter and filled the cartridge with this stuff-about half and poured the rest in the tank. I think it still works this way although I'm sure it's more effective to use as recommended .my mpg has gone up and car is very smooth , but I also cleaned out the egr and inlet manifold at the same time so I'm sure that helped. I'll probably use it again when I next change fuel filter

I used it on my 300D E-Class and it was easy to use. Even with fuel system being decent condition it still made a difference in how the engine runs now. It is much smoother and responsive. Liked the car before. Now I am in love... will use it again if ever will feel it is needed.

I have a series 3 Land Rover with a 200 Di engine in it, which has done around 160,000 miles. Runs like a dream but was blowing out a fair bit of black smoke on flooring the accelerator. First I put a good dose of Hydra Diesel Power Blast in the tank and gave it a good Italian tune-up. (A high speed blast up the road to blow the cobwebs out) It came back much better but still some smoke. Then I did a proper purge by dipping the fuel and return pipes into the Liqui Moly Diesel Purge, which I had transferred into a clear plastic container so that I could see the level, and running the engine for 20 minutes at varying engine speeds. Result: smoke level reduced to almost nothing, much to my delight and relief as MOT due next month. Recommended product by me, an ex-mechanic.

Used this as part of a general system clean after failing MOT on emissions: smoke tested at 1.34 average over 6 runs - highest was 2.0 !! - where the car needed to be under 1.0 as per manufacturer's spec. Changed the oil after using this LiquiMoly, and changed fuel filter and air filter. Also cleaned out the intake manifold and turbo piping, as there was oil in there which could skew the result. When it went for retest the car blew a smoke reading of 0.09 on the first run, which was an instant pass. Having done other things apart from use this product to get through the MOT smoke test, I couldn't say what its contribution was to the generally very reduced emissions: I can only say that my hunch is that it played its part - and that I'd use it again in a heartbeat. To be honest, for the price, I'll use it at every service from now on.

I don't recommend this seller and this product.