How Liqui Moly Engine Flush Destroyed My Engine

After hearing about some good results using “engine oil flush” I decided to give it a shot. My engine had 200k miles and I religiously changed the oil, although the previous owners probably did not. Long story short, the engine flush knocked some debris or sludge loose and it clogged an oil passage, causing the bearings (in this case only one) to overheat and eventually fail. I destroyed a rod bearing shortly after performing this engine flush and after doing research Ive found that this is very possible and probably exactly what happened. PLEASE, for the sake of your own vehicle, DO NOT USE ENGINE FLUSH. The only thing that belongs in your engine is OIL and if you want to “flush” your crankcase, do so by just simply changing the oil every 1000 miles. Hope this saves at least one person from attempting an engine oil flush on their higher miles BMW.

[praneetsingh]

Engine flushs are joke all together, we are not in the 1980’s oil has come far and contains detergents it already cleans and suspends particles in the oil no need for flushes just regular oil changes. If flushes are required for some reason, use cheap oil and flush that through, additives are designed to break down oil. So of course it cleans out oil gallery’s etc, but until oil can get in and provide protection (start up where most wear occurs) it’s got nothing because it’s been flushed.

[leonm]

I’ve been using liqui moly engine flush products on my classic for years now, never had an issue, the engine flush has nothing to do with this.

[bogdanpst]

First : where is the proof ? How do we know it was a bit of sludge that clogged an oil passage ? Show us ! Nobody needs suppositions. Maybe it's just a coincidence. A 16 seconds clip means nothing to make a case. There're a lot of engines with the same problem WITHOUT using an engine flush.

Second : on older or high-mileage engines, you should do 2 or even 3 flushes at idle. In order to liquefy those circulating sludge deposits.

Third : bits of sludge, gaskets and metal could go in any oil passages WITHOUT any engine flush. Who's to blame ?

Forth : how do you explain that there're a lot of high-mileage cars using flushes and not have this problem ?

Fifth : in a high-mileage sludged car, that sludge is a time bomb anyway. Any higher shock or high revs can move some bits. A sludged engine is a bad running one, having bad fuel efficiency and bad performance.

Sixth : there's no synthetic oil that can save a sludged engine. Simply because its detergents are too limited. They are designed to clean the regular dirt not the very old one.

Seventh : your engine looks too clean to suspect that bad bit of sludge. Maybe you've cleaned up before the filming, but who knows what realy happened before the filming as long as we can't see ? :)

So, I'm not saying you're lying, but you're a rare unfortunate case. Not a rule. Drawing a conclusion from a few rare exception is not a good idea. Look at how many flushed old engines run better. I think your sad case is not even 0.5% of engine flush users in older engines. Let's see all the aspects of not using a flush and draw the conclusion.

[putinisgod]

The reason for the damage is also the reason why someone tried to flush the engine. The oil was simply not changed regularly.

[BW-kvwj]

I’ve got 450, 000 miles on my 1992 Toyota Truck V6. I’ve always used Amsoil from the time I bought it. I’ve never even considered putting a flush in it. Still runs as smooth as the day I bought it new from the dealer.

[Jin-Ro]

Engine flush didn't do this, poor maintenance did.

[gregorlamontagne]

One of two German things has failed but it was not liqui moly flush😂

[martycondrey]

I used chemtool b12 on a piston soak and actually improved. This was probably a pre existing problem.

[tamte]

Paul Dan helyesen mondja. Ezt a sajnálatos esetet nem lehet a motoröblítő folyadékra fogni. Lehetett rejtett meglévő hiba is. Csak az öblítő esetleg feltárta a problémát. Valamint, majdnem mindegyik öblítő gyártó írja hogy csak alapjáraton lehet ezeket az öblítőket használni. Nekem személyes tapasztalatom, egy kuncsaft frissen vásárolt öreg Daewoo matiz-ban alkalmaztunk mannol motoröblítőt, előtte a hengerfejben a vezérmű tengely és szelepnyomó himba karok szinte szárazak voltak. 30 percig járattuk a motoröblítővel, utána pedig más probléma miatti motorbontáskor azt tapasztaltuk, hogy sokat javult az olajellátás, a hengerfejen rengeteg olaj állt, a vezérműtengely és környéke jó kenést kapott. Szoktam más autóknál is használni a motoröblítőt ahol tehetem. Ez mannol termék volt, de kétlem hogy sok különbség lenne a termékek között. Esetleg annyi, hogy az egyik gázolajjal, a másik petroleummal tisztít.

[sickvick]

I bet you left the engine flush for days and running it lmao

[danielsolomon]

Most people thinks engine flush is the culprit if something when wrong with their engine after they flush it but in reality the flush works too well untill all carbon build up flush out and causing you to notice the error in your engine. That is why professional always don't suggest engine flush on high mileage engine because the carbon built up could be the only thing keeping you engine together from leaking and etc. Once you flush it everything become lossen up and potentially cloak your OCV & your oil sump pipe causing engine oil not able to circulate properly and damage the engine

[oftenmisconceivedtv]

If you’ve owned your car from day 1 and have kept up with your oil changes and your car is less than 15-20 years old, I think it’s safe to say that you do not need to worry about engine flush. Now if you’re not the 1st owner and don’t think that the previous owner was meticulous with the maintenance 👨‍🔧 then I guess you could perform a flush 🤷‍♂️

[dayzetsu]

it because your car to old and 200k milage, not good to use flush, because big debree fall off and break inside engine, you should use syntetic oil engine, or mild engine flush, alwais change oil first to break sludge slowly and safely after that use engine flush .i see many result imrovement compression when use engine flush when right method

[ukorihcah]

first problem...you own a BMW...second problem. that probably probably existed prior, for solution to second problem see first problem.

[Shellshock]

For anyone thinking of using engine flush just because without a real reason, don't. Engine oil flushes typically can do more harm than good. If it's a car you care nothing about, then go ahead. Otherwise just change the oil regularly to keep your motor clean. Oils have cleaning agents in the oil already. I recommend using synthetic to help reduce the possibility of sludge build up.

[Joshtheweatherman]

Just like your transmission, if you don't change your oil often, you will run into major issues when you change it. The thought of having a clean engine is nice, but in reality, any crud that's built up is actually helping out with keeping the engine running, and pretty much compensating for the wear. NOW on GDI engines, it's not a bad idea to do engine flushes. BUT.... I still wouldn't recommend doing it if your engine hasn't been maintained properly.

[WLegendary]

2 things can cause this 1:from low oil pressure pump 2: or low oil level

[JM-tznp]

BMW does have rod knock issues in many engines. It does not matter if you use engine flush or not, because there is desing flaws and poor quality bearings. If you beat cold engine it is just matter of time when something will go wrong. I have had one engine break down in Ford because of blocked oil nozzle. That engine did not get engine flush when I did own it.

[gerlandkent]

looks like you had the engine problem before you used the product captain

[CallMeDezy]

It's not the engine flush that destroyed it, it's already been broken and should've been repaired a long time ago.