What should I use for engine flush?

[TiGeo]

tigeo,since you are an expert on LM brand and products..i went for my oci the other day and told my mechanic to try a first time engine flush at 160.000 km since i suddenly had an oil consumption of 1lt/3500km.i know its not that much for a bmw but it happen suddenly . i was thinking on trying this product since it has good reviews.
he told me he uses that too but there is a better one from LM that he has it..a LM engine flush product that you can find it only in germany. i thought he takes me for a fool so i wanted to ask you if there is such a product from LM that is limited only in german market? its the one you leave it in engine for the last 1000km before OCI.
of course he didnt mention its name and i didnt want to ask him bcs. he would think that i am going to do it myself ..its a matter of knowing each other since its the first time i went to his garage and he might be offended

They do make/sell a different product over there, it's got "sludge" in the name I believe. Just go to their Euro site and look for it.

 

[svenson]

this one?

Oil Sludge Flush

The perfect solution for cleaning the engine from the inside. Removes black sludge and other contaminants and deposits. Increases the operational reliability of the engine and prevents lubrication deficiency. Gently cleans oil holes, oil screens, piston ring grooves and ducts and prevents engine...

www.liqui-moly.com

i found a topic here about that:

Thread 'Liqui Moly Sludge Remover video. Did I come to the correct conclusion?'

Apr 21, 2023

Disclaimer: I'm shilling my latest YouTube video here but wanted to run my results by the forum based on some comments I have been getting.

2008 Buick Lacrosse 127k miles. Venerable GM 3800 engine. Never flushed before.

Drained the old oil, Hershey's syrup consistency. Completed 3 oil & filter changes (each filter opened up) with running the engine for 20 minutes in between so I could have very clean oil to start with and to rule out any contamination from remaining engine oil. This way I can confirm that the oil became dirty from the sludge remover.

LM Sludge Remover instructions state...

• Owen Lucas
• Replies: 17
• Forum: Mechanical/Maintenance Forum

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thanks for the answer

 

[TiGeo]

Looks like it.