Change oil soon (& then some)

[Greg Westphal]

My wife's 2000 Buick Regal has the same oil-life monitoring system you
GP has.  It's amazing all of the other things packed into these cars'
computers. :)  Concerning the oil viscosity, today's engines have
tighter tolerances, so they don't need the thicker oil to maintain an
acceptable oil pressure.  My '87 IROC (305 TPI until next weekend) has a
recommended oil of 5W-30, which I've used for the past 60k miles (only
Mobil 1), and it still has great oil pressure and doesn't leak or burn
oil with 131k miles on it now. :-)

Greg Westphal
'87 IROC

Bob Wooten wrote:
> 
> Thanks to all.  I just changed the oil & when I went to check the manual
> (yes I am one of those who do read the parts that are important to me), to
> see how much oil it was going to take there were about 600 warnings to use
> only 10-30 (or 0-30 for those of you in the colder places) Motor oil & to
> "NOT USE OTHER GRADES SUCH AS 20-50".  What gives?  am I so out to lunch
> that I have missed something in motor oil technology?  Mind you this was a
> 20 year step up for me (had a 78 Turbo Regal), so now you know where I am
> coming from.
> 
> Thanks again
> BW
----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org