In a message dated 6/22/2001 8:38:17 AM Eastern Daylight Time,
npenney@mde.state.md.us writes:
> The lack of cleaning or suspending contamination I've long suspected from my
> own experiences. In the jet engines, one always found sludge. In the
> piston engines I've used it with I've never seen it remove any sludge that
> was in the engine prior to its use. I'd also noticed how the oil would
> seem to drop particles out of suspension, while regular dino juice
> wouldn't. On the jets, if you let them sit for a while and checked the oil
> level, the oil would always be clear, no matter how many hours were on it.
> Run the engine though, and now the oil would be darkened. Similar with my
> cars. Check the oil after driving and it would look murky. Let the car
> set for few days, and the oil would look clearer.
>
I have never noticed this with Mobil 1 in my Jeep Grand Cherokee V8 with
108,000 miles on the clock.
I just drained the oil after a long drive and 3000 miles on the oil and it's
now sitting in 2 clear plastic jugs (1 2-quart, 1 3-quart). I'm waiting for
the dark color to settle. Been 24 hours now, not yet...
I've done the same thing before, but not paying great attention. I don't
remember the dirt settling out and leaving the oil looking clean.
I think the benefits of automotive synthetic oils is well proven and any
discussion here is a waste of time. Use it if you want, don't if you don't.
I don't in the Spitfire because I change the oil every 500-1000 miles for
grins and giggles. I will only report of the suspended particles settling
out...
I'll wait a week or so and let you know...
Clark
"If it's not fun why do it?" Jerry Greenfield
Clark W. Nicholls
CWNicholls@aol.com
http://members.aol.com/CWNicholls
fax: 419-844-7564 (yes, 419)
phone: 413-243-3433
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