Engine Oil Flush - What are your thoughts?

[Dave3066]

Sounds like a lot of hard work!

Indeed it does....and I woudn't want to be the first to try it only to find out it did more harm than good :shock:

I've heard of putting diesel oil into an engine as a flushing agent but not diesel fuel.

Dave

 

[Junkman]

Diesel fuel is a light oil, And a local mechanic assures me that draining the oil from my 3500v8 AND leaving the oil fillter in place and replacing the sump plug THEN Fill the engine with two gallons of diesel and remove the HT lead turn engine over two or three times and leave for a few hours repeat the procedure for three to four times and leave overnight, drain out diesel and and re fill with a gallon of diesel turn over engine a few time and drain blow down engine with a air line oil filler + dipstick tube,and leave to drain. fill engine with recommended oil fit new primed oil filter and turnover engine until oil light goes out reconnect HT lead. Apparently diesel fuel destroys old oil deposits and turns them into liquid sludge. the diesel being light oil protects the engine during the cleaning process? what are your thoughts on this! :roll:

Some people say I am a bit of a mad scientist, but I would never revert to such painfully labour intensive methods to risk the wellbeing of my engine.

 

[Demetris]

Apparently diesel fuel destroys old oil deposits and turns them into liquid sludge.

As far as i know it does the same for rubber too, at least rubber that was not meant to come into contact with and withstand diesel fuel in the first place.
So I am a little worried about seals, gaskets and oil cooler hoses.

 

[webmaster]

Somebody else suggested this to me too, but I just couldn't bring myself to try it. If your engine appears to be running fine, then a simple oil and filter change should be all that is required.