I believe the general consensus is that most "engine flush" products purchased online or at an autosupply store have little to no benefit. Especially so when a lot of sludge is present...most will have a mild effect with very light sludge or varnish only. (there are threads here of before and after pictures doing engine flushes with valve cover removal. when heavy sludge is present...almost no change!) My own experience (only tried once) was using the Liqui Moly engine flush (more as a maintenance, not to remove sludge), and shortly after, I had a rear engine seal failure and small drip of oil on the floor of my garage. Cost me $1000 to have the trans pulled and the seal replaced. Whether the engine flush had anything to do with it is debatable, but the engine only had about 85k miles at the time.

The least invasive method to clean up your engine, is to simply perform more frequent oil changes. The factory says 15,000 mile oil changes, and most of us here change at between 5,000 and 7,500. I have changed at 7,500m intervals since new, and now at 262,000 miles. I only have light varnish inside my engine, no sludge. I would simply start changing your oil at 5,000 intervals for a while and monitor the results. The bottom line, the sludge really doesn't seem to hurt anything unless it plugs a vital oil passage...which is rare.

 

Just use cheap oil change it every 2000km 4 times with filter then fifth time change with good oil you should feel difference and change every 5000 km until you feel it's ok then change every 10000km with filter
Good luck
Tested procedure on my friends sludged engines

 

^ agree with the more frequent oil changes. Oils have additives to help lubricate and CLEAN! These detergents break down over time. So repeated short-mileage changes should do a fair job in cleaning up the inside of your engine. Now if you're burning oil due to assumed blow-by, I would suggest some sort of treatment to the cylinders themselves. Other than that, just frequent changes for a bit.

 

Engine flush products based on my experience work to a certain degree. If you have sludge ridden engine and other soft buildup, flushes work fine.

But if you're trying to tackle the hard gritty caked on buildup and varnish well, sucks to be you. Though keep in mind if you see varnish in your engine it's not something to lose sleep over. It's only when it starts to develop on movement surfaces like bearings, piston rings/sleeves, cam rollers, etc is when it's a real problem that should be addressed.

If you just wanna do a regular flush just flush away. Not for too long of course.

 

An effective engine cleaner is Rislone. A friend had very low oil pressure in his V8 pickup truck. By removing the pan,he determined that the oil pickup screen was clogged with sludge.

After one treatment, he regained the oii pressure.

Worth a try, but don't know if you can find it in Kingston.

Frequent oil changes can prevent sludge buildup, especially if all your trips are short.

 

Very good decision.

Sent from my SM-A500FU using Bimmerfest mobile app

 

flush n change flush and change..

Hell ive done crazier things...

But yeah they work and they dont work.. best thing is to switch to regular oil... add flush, run around for a few days... do a oil change, add flush run around for a few days oil change,

useslly after 3 or 4 oil changes... your not gonna get any better