Engine oil flush technique?

[torquelover]

I have never had to do this. Whenever I pull my valve covers, everything looks like it was brandy new. I found this Panther in Poland and am intrigued by the process he used. Any thoughts on this?

http://www.supermotors.net/vehicles/...ry/17057/58690

[murphmobile2]

I'm half afraid to know what that would do to your gaskets...

[torquelover]

Sure is a clean dipstick, though.

[Nathan in MI]

I'd be awfully suspicious of running the oil/diesel fuel mixture in there...that seems like it'd be pretty thin.

[P72Ford]

I wouldn't do that on an engine with 330,000 km on it. It could loosen up a bunch of crap, and it may not come out of the engine; it may get caught elsewhere, leaving you fucked...

When I take my VC's off, my engine is very clean inside; it looks like new. My Dad was floored the first time I had the VC's off. The oil that comes out is nasty, but nothing that alarms me, or makes me say "damn, that ain't right". What the hell, its a carcinogen, right?

I would have used at least 3 quarts of oil with the diesel as well. 2 quarts of oil doesn't seem like enough. I'd be afraid of bearing damage...

[torquelover]

His oil pump inlet screen would be pretty interesting to see I imagine. Worst case scenario for me was blowing an upper radiator hose during an aggressive passing maneuver and overheating the motor. I went home, reattached the hose, and put in some fresh oil, ran it a bit, and them dumped it out. I then refilled it with more Mobil 1 and spun on a Purolator Pure One filter.

[85crownHPP]

If its clean under tha valve covers, and your oil still has some clean in it when you change it, you have no need for this.
Its ONLY when its a LITTLE gunky that you do this kind of flush. If you do this to a sludgey motor, its a good risk of a one way ticket to clogged oilpump screenville. This is a land of dead engines.

[gadget73]

you know those cans of engine flush that are for sale at auto parts stores? quart of kerosene is about all that is. Same difference pouring in some diesel with the oil. It cleans it out, but sometimes breaking that garbage up is a bad thing. Personally I'd let it lay, its nasty but probably doing less harm sitting still than it would if one were to break it free.

[1987cp]

Not sure how a failed air filter caused sludge buildup ..........

[mrltd]

I toss in a quart of trans fluid with the oil. Little less harsh on the gaskets.

I rarely do it, decent oil change intervals will clean an engine up pretty well. Think I've only done it on one of my cars.... a 206K mercedes that actually is really clean inside.

[Nathan in MI]

Not sure how a failed air filter caused sludge buildup ..........

Probably what happened was the air filter ruptured, so unfiltered air was getting into the engine, leading to dirt getting in the oil.

[cld783]

overkill if you ask me.. his oil isnt going to stay that clean, and im sure it went back to being the normal black color like everyone elses.. the damage if any would already be done and it could also being doing more harm than good.

ever heard of seafoam? it does the same thing.

[Heretic]

Fucken diesel? This man took a risk with this procedure. I would be weary of even ATF let alone diesel. Regular oil changes would prevent an engine from getting that shitty in the first place.

[85MercPark]

After I drain my oil I pour two qts of cheapo oil in and let them drain right out. Gets the rest of the dirty stuff out then I plug and refill, Nice and clean...

My ex bro-in-law used kerosene to clean a motor he put in his Buick years ago, engine was full of sludge, just let it idle for 10 minutes. Didn't have any problems till the trans went bad, stayed in 1st gear and my sister drove it home at 55 mph...

Kerblowy!!!

[torquelover]

Even with regular oil changes old-school Quaker State oil used to sludge pretty badly. I believe they fixed the formulation a few years ago. The only oil I usually use besides Mobil 1 is Castrol GTX dino oil. Never had a problem using either oil.