Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037

Used a whole can in my 2009 Civic 1.8L with 150k miles. I can honestly say, this helped remove a lot of sludge out of the engine. The oil came out with a water-like texture and super dark! Before taking out the oil filter, I added new lower cost oil to the engine and let the engine run for about 5 minutes to get that extra flush! You can definitely see all the extra sludge in the new oil!Drained and refilled with new oil and filter. The engine definitely sounded quieter and smoother than before!If you value your car, I would definitely recommend doing this flush on your higher mileage cars every 50k miles or so!Definitely recommend this LiquiMoly product!

This stuff immediately solved my issue with a misfire on cylinder 4 due to a clogged filter (in the engine block) which feeds the MultiAir system on a Fiat 500. I had tried replacing plugs and coils before someone online recommended this product and I’m so glad they did! Ran it through the oil for 15 minutes, drained (came out black), filled with fresh oil and ran for another 15 minutes before draining (drained black a second time), then replaced the standard oil filter and filled with fresh oil. I have purchased the new engine block oil filter for the MultiAir system but since it requires lifting the engine slightly to replace I have been putting it off and this product was a huge time saver!

Worked great. Cleaned internal engine very efficiently.

I watched several videos by professionals who used this. Follow instructions. Make sure the engine is warm before you put it in. Make sure you have everything you need. The biggest tip I got that was repeatedly emphasized by the pros was to buy a “cheap” oil in addition to the new oil. After you run the flush drain the oil and flush. Put the cheap oil in and “rinse” the inside of the engine with the cheap oil. Then drain again. Replace the oil and filter with your good stuff.I followed these instructions or suggestions and….I sat in the truck while the flush was running. It’s a 13 year old truck with 150,000 miles. It was running strong but burning oil and kind of loud. Sounded like it was growling. There were some ticking type noises that made me nervous. As I sat in the truck and let the flush cycle through the engine at idle I could literally hear the flush working. Very slowly it was like someone gave the engine a Xanax and you could hear it getting quieter and calming down.I drained, rinsed with cheap oil only letting the cheap oil run through at idle for another 15 minutes then drained again. The oil flush was clearly important. It didn’t come out as black as the first drain but it looked like old nasty oil.The truck is no longer burning oil. My gas mileage has increased significantly and it is running so quiet and smooth it’s unbelievable. I used a little less of the liquid Molly flush than it called for regarding the flush to oil ratio. I didn’t want to do something too intense to the inside of the engine. But the results were remarkable. Just as advertised after following the instructions. I also added the liquid Molly oil additive to the final oil change to ‘lube’ the inside of the engine. I plan to do another flush in about 10,000 miles.All that to say, yes, you won’t be disappointed as long as you follow instructions and a few tips and tricks. My truck is almost running like a brand new truck and again it’s an old and tired truck. I will use this as part of a high mileage maintenance and perform the flush every 50,000 miles or so. I feel confident it will extend the life of my engine based on the results

So as an owner of two Saab 9-3 convertibles, I have stumbled upon the common problem of low oil pressure. The low oil pressure is due to sludge buildup from extended oil change intervals and blah blah blah you get the point.Anyway, I dropped the oil pan and cleaned out all sludge from the pickup screen and everything else. The recommended fix. I still had an oil light after that.This was my attempt to clean out residual sludge that had been leftover in the rest of the engine.I did a test to see how well it actually cleaned. This is how it went.I had my engine oil in it (the old oil that needed changed) and I added 1/3 of a can of seafoam to that oil. Seafoam is a less aggressive but very effective additive. After 50 miles of running that, I drained the oil and changed the oil filter.I then put cheap, conventional oil into the engine, with a brand new oil filter. Ran that for less than 5 miles just to get it warm. Performed liqui-moly engine flush with that oil. Came out decently dirty. I have seen dirtier, but this was very dirty for 5 mile old oil.The proof is there. The oil came out much dirtier than expected for 5 mile old oil.For those who care about the pressure, read on.Before the engine flush, I read about 12 psi at idle. (5w-30)During the engine flush, it remained relatively unchanged. About 15 psi. (10w-30)After engine flush, I now read 20 psi at idle. (10w-40)The boosted pressure could be from the extra cleaning that the flush did, or it could just be from the slightly heavier oil. Who knows. All I know is, the oil came out dirty, and I have sufficient oil pressure. That's enough for me to recommend it.

This product works well. I used this on a high mileage vehicle with a fresh oil change and the oil came out black (this product is clear).

Great engine cleaner! I used half a bottle, drove 1k miles and did a oil change and the filter was filled with sludge and deposits.Going for the other half of the bottle and another 1k miles and will see results then!Really, really good stuff if you run it with each oil change.

This stuff worked GREAT...!I bought an OLD mahogany boat - 1950s inboard. It ran, but engine oil was black with sludge.I used Liqui-Moly as directed, then replaced with new oil. The new oil was almosttransparent on the dipstick. Would definitely recommend...