spw2562@ritcv.UUCP (Fishhook) (12/06/85)
I'm currently using 20-40(20-50?) petroleum base oil in my
'77 Chevette, 4cyl, 1.6 Liter engine. (Don't ask why. It's
a long story.) I would like to switch over to a synthetic base
oil, probably 5-50 or something like that. Is it safe to do
this gradually as the car needs oil, or should I drain the engine,
and put the synthetic in all at once? Also, any recommendations
on a good synthetic to use? I frequently make an 80 mi trip (one
way) on interstate routes at high speeds. If I were to make a
gradual change, it would take a very long time, as the car doesn't
seem to use up the oil thats in it already. The level hasn't
changed since I had the head replaced a month or so ago.
==============================================================================
Steve Wall @ Rochester Institute of Technology
USnail: 6675 Crosby Rd, Lockport, NY 14094, USA
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Disclaimer: What I just said may or may not have anything to do
with what I was actually thinking...