Gumout Engine Flush...Good or Paint Thinner?

I saw the Jugs at my Pep Boys. I'm using Auto-Rx on my Corolla now,
though I think it isn't strong enough. Has anyone used Gumout Engine
Flush? Can it completely screw up my engine or is it a magic bullet for
sludged engines? Any other suggestions for flushing: Schaeffers Neutra
131...??

On 29 Jun 2006 20:34:24 -0700, wrote:

>I saw the Jugs at my Pep Boys. I'm using Auto-Rx on my Corolla now,
>though I think it isn't strong enough. Has anyone used Gumout Engine
>Flush? Can it completely screw up my engine or is it a magic bullet for
>sludged engines? Any other suggestions for flushing: Schaeffers Neutra
>131...??

What are you trying to achieve?
Are you trying to destroy your engine?
Even as rugged as a Corolla is you may eventually succeed if you keep
throwing this crap in the crankcase.

Don
www.donsautomotive.com

On 29 Jun 2006 20:34:24 -0700, wrote:

>I saw the Jugs at my Pep Boys. I'm using Auto-Rx on my Corolla now,
>though I think it isn't strong enough. Has anyone used Gumout Engine
>Flush? Can it completely screw up my engine or is it a magic bullet for
>sludged engines? Any other suggestions for flushing: Schaeffers Neutra
>131...??

Why do you need to flush it out? Regular oil changes should keep
everything in check. My advice would be to check for a high detergent
oil, as lightweight as possible. Run it for a short period, then
replace it with your regular engine oil.

Sometimes a flush can be a bad thing. I've seen where a flush results
in the removal of crap in the camshaft journals, ending up with no oil
pressure to the top end. True, the real problems was worm cam
bearings, but it sure was effective at making the engine completely
unusable without a good investment. Sometimes not worth it on an old
engine.

wrote:
> I saw the Jugs at my Pep Boys. I'm using Auto-Rx on my Corolla now,
> though I think it isn't strong enough. Has anyone used Gumout Engine
> Flush? Can it completely screw up my engine or is it a magic bullet for
> sludged engines? Any other suggestions for flushing: Schaeffers Neutra
> 131...??
>

If your engine is sludgy, don't expect anything to clean it out
overnight. Anything that *does* clean the engine out overnight is
probably not good for it. I would recommend sticking with the Auto-RX
and using something like Shell Rotella for your rinse oil.

nate

--
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Agreed with the others...engine flushing is NOT something you do for
regular maintenance, and trying to blast a neglected engine clean is
like playing Russian Roulette, except with one EMPTY chamber...when
that stuff moves, it's gonna cause a problem down the line...

You want something that will slowly clean an engine in manageable
increments? Do what was suggested above...Marvel Mystery oil works
well, I've heard 10-%15 ATF with an oil change works well, I only flush
as a last ditch attempt to see if an engine can be revived before
needing a complete teardown and inspection, and even then don't expect
much...had a couple through the shop that were so neglected they
stopped running due to low oil pressure cutoff, revived one or two by
running 25-30% Kerosene in coinjunction with new oil for 10 or 15
minutes, then change the oil again to loose the kerosene and flush any
remaining from the engine, then once more to remove any sludge or
traces of kero after a couple hundred miles...it works about as often
as it doesn't...kind of a crapshoot..


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I bought a beater car awhile back, poorly maintained engine-wise.
Sludged up in the valve heads. Used some Gunk 5-minute engine flush,
it cleared it out rather well, but the oil was really bad looking when
draining out, and got a short-term leak from rear crank seal.

But, it was old beater car, no real loss if the Gunk harmed the engine,
which it didn't, in this case. I'd hesitate to substitute an engine
cleaner to fix lack of regular oil-changes [including new filter].


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Knifeblade_03
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Knifeblade_03 wrote:
> I bought a beater car awhile back, poorly maintained
> engine-wise. Sludged up in the valve heads. Used some Gunk
> 5-minute engine flush, it cleared it out rather well, but
> the oil was really bad looking when draining out, and got a
> short-term leak from rear crank seal.
>
> But, it was old beater car, no real loss if the Gunk harmed
> the engine, which it didn't, in this case. I'd hesitate to
> substitute an engine cleaner to fix lack of regular
> oil-changes [including new filter].

When I was a kid, we use plain old kerosene in the crankcase.
Drain the oil, fill with kero, run for 5 minutes, kill it, drain
it (the kero coming out was more like oil than kero!), fill with
a 50/50 mix of kero/30W, run until hot or about 15 minutes,
drain, put in oil, drive a week, drain and refill again. Forgot;
takes three oil filters, too, two during and final one
afterwards. Worked wonders on my 54 Chevy, 55 Ford, and then a
friend's 57 Chevy. Never hurt a thing that we ever knew of. I
DON"T think I'd try that with today's cars though!

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