know anything about engine oil flushing?

[GTR32]

Hi Guys;

i don't mean the normal heat up/dump oil/refill/run a bit/dump again/ refill (last refill optional if you're like some people i've seen). my local import garage has a box (yep not a drum) with 'engine flush' written on it and this stuff goes in the oil filler cap.

theoretically good i guess, particularly since we hear about imports with built up sludge etc. and what happens when said sludge decides to dislodge and start traveling around to visit mr lifter.

what i can't figure out is what this flush stuff does to get rid of what's already in the engine - the only thing I know that gets rid of oil sludge is a solvent and none if that will go near my engine internals.

cheers and thanks for any feedback

[Busky2k]

I probably wouldnt use one in your engine if it has no problems Just stick with a good oil. If you have a noisy lifter then be cautious when you use it. You dont want junk plugging up your oil pickup screen if the engine is seriously sludged.

[Ben101]

Engine flush is known to dis-lodge any thing thats in your engine and contains some hard core solvents when flushed can cause metal shavings to get stuck in bearings or move some sludge thats blocking a small crack id stay clear of that if you want to flush just repeat the steps heat up/dump oil/refill/run a bit/dump again/ refill its the best system

[RB30-POWER]

I agree with what has been said above.

You dont want to run these so called cleaners around the engine, it can dislodge alot of stuff, possibly causing leaks from seals, blocked oil galleries etc etc.

Just asking for trouble.

I remember a few of my TAFE teachers years ago, saying that Diesel Oil is good for this purpose, as its very high in detergent and cleans it after a day of running.

But once again you run the chance of problems i guess.

[BigDatto]

Yep, diesel oil flushing is a real "old boy" trick. Like washing your car with water/kerosine mix, and vinegar in the wiper bottle.

[Duncan]

lol we ran kero/oil thru the datto and it cleaned out the old gunk nicely.

wouldnt really recommend it for a car I actually liked tho

just run some cheap oil thru for a couple of hundred kays, and repeat.