Gunk

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Oct 25, 2004
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is ok to use Gunk an a clean engine, that has ran through ARX treatments, LC doses, bilstein flushes just to remove old contaminated fluid. I was planning on using it only for five minutes so when i put in my new oil, it would remain new.
 
If you put Gunk into a clean engine, you're wasting your money.

If you put Gunk into a dirty engine, you're risking a clogged oil pump intake screen.

Either way, it's a lose-lose, IMO. I'd pass on the Gunk, since it sounds like your engine is very clean already.
 
Here is a gunk story. A friend was sold an engine flush at an oil change place. I told him not to do it but what do I know I only work in an oil analysis lab. He let them do it. The next day he had a bunch of banging lifters and went to the OC place. That couldnt have been caused by the flush they said. Anyway to get to the end it cost my friend $3000 or a rebuilt engine.
Keep your engine clean by changing the oil regularly and use good oil. If its really dirty the crud that breaks loose will just bugger something up. Same gose for transmissions. Never flush a hi mmmile transmission. You will be in the shop really soon .
 
The question is how everyone defines clean or dirty.

Most of the 5-10 minute OTC flushes recommend it every 3rd-5th oil change, or once every 10-15k miles. Used that way, they work extremely well.

If you have already ARX'd, and are using LC, why even bother?

I've never seen gunk destroy an engine.
If the engine is so sludged up from neglect, who's to blame??

If you drive 100k miles with a couple oil changes and then dump a few quarts of kero into the engine, you DESERVE that new engine expense
grin.gif
 
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