Fred,
Thanks for your insight. I think there may have been a wrong assumption
with my initial post regarding economics. That really was not what I was
questioning, but the things you have answered were what I really was looking
for. Finally got out my book on my '95 S-10 and frequency of lube/oil
changes are 3,000/3 months or 7500/1 year, depending on usage. Seems that
even dino oil has a relatively wide expanse of longevity depending on use of
the vehicle. I have changed it at 3000 religiously regardless. My former
company used to require oil changes at 3000 but recently went to 5000 miles
cause it is easier for the non mechanical sales people to remember. This
was done via PHH fleet maintenance. The two main vehicles were Ford Taurus
and Chevy Astros with lots of weight. The Taurus was mainly highway
driving, and the Astro was mainly city driving. It just seems to me there
is a lot of leeway built into these oils, dino or syn, that the company's
are not telling us about.
Thanks again for your reply.
Roger
Thanks for your insight. I think there may have been a wrong assumption
with my initial post regarding economics. That really was not what I was
questioning, but the things you have answered were what I really was looking
for. Finally got out my book on my '95 S-10 and frequency of lube/oil
changes are 3,000/3 months or 7500/1 year, depending on usage. Seems that
even dino oil has a relatively wide expanse of longevity depending on use of
the vehicle. I have changed it at 3000 religiously regardless. My former
company used to require oil changes at 3000 but recently went to 5000 miles
cause it is easier for the non mechanical sales people to remember. This
was done via PHH fleet maintenance. The two main vehicles were Ford Taurus
and Chevy Astros with lots of weight. The Taurus was mainly highway
driving, and the Astro was mainly city driving. It just seems to me there
is a lot of leeway built into these oils, dino or syn, that the company's
are not telling us about.
Thanks again for your reply.
Roger