On Friday, June 30, 2006 at 4:02:18 PM UTC-7, Pop wrote:

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!
pop

I've used gumout in my engine for about 4 years now. I have a 2002 Yukon, never failed smog, spark plugs also seem to have very little build up on them at all when changed. After a using the product for a while I can tell the difference with my fuel
economy it seemed slight better and no engine ticking, could be due to putting a few ounces in the oil. I have never had any engine problems since using this product.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)