Oil (again)

[frank@zk3.dec.com (Douglas Frank USG)]

Say, what's all this "Service SJ" stuff anyway?

Mobil 1 seems to be the most popular synthetic (at least it gets mentioned
the most on this list, & on A4.org).  So I trucked over to Kmart to check
prices (all in the $4/qt range).  Looking on the back, all the synthetics
say "for service SJ"  (or "SJ/CF").  Many of the labels claim equivalence
to other codes, (usually SH)-- but NONE claims to be a replacement for
either SF or SG.

The trouble is, my owner's manual says to use service SF or SG oil.  What
the heck do these codes mean anyway?  Is there a system to them?  Would
SJ include everything from SA to SI?

-- 
--Doug

Douglas Frank  Digital Equipment Corp.   (a tiny little division of
ZKO            110 Spit Brook Rd.         CompWinTel Heavy Industries, Inc.)
DTN 264-0501   Nashua, NH  USA  03062-2711

DAWN  n. The time when men of reason go to bed.