Re: Dark Oil?

From: Shane Moseley (smoseley@ix.netcom.com)
Date: Sun Mar 25 2001 - 13:44:51 EST


Ronald Wong wrote:

> Shane,
>
> Check out this site: http://cjsupra.kendra.com/Oil-Spec.html
> Nothing there indicates sulphur or sulphur products, only as a by-product of
> diesel fuel combustion, which is a corrosive.

Hey thanks for that link - good info for sure. I wish I had tracked mine like
that! My oil history is pretty much all Castrol GTX 20w-50 since the first oil
change. I add some marvel mystery oil during the winter season to thin it out a
bit (and do some extra cleaning). The main reason I went w/20w-50 is because it
stays on my moving parts longer overnight and provides me with more protection
at startup than any thinner oils I've ever used. It eliminated that first few
seconds of "lifter noise" as well as made for a rock solid, steady oil pressure
reading under all conditions from crank to kill.

>From the looks of that analysis - Castrol might not be using sulphur - oops
maybe thats why I see some scuffing. Hmmm, now I'm wondering how I might find
out about which products use it and in what amounts. From that data - it looks
like Redline makes heavy use of both Moly and Zinc - and that Mobil 1 does the
same w/Magnesium. Very interesting data for sure!

Thanks again!

Shane

--
'96 IndyRam-HisIndy-MPI/TB/Pulleys/AccelCoil/MPComp/HookerSuperComps/CompTAs
'96 IndyRam-HerIndy-numbered(#142)"Track Truck"
'74 Triple-Black Dodge Challenger Rallye 360 home-brew EFI R&D vehicle
'68 Black Corvette Convertible 427 (For Sale)



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