Mobil1 vs. Non-Synthetic vs. Red Line?

[bearbvd@cmn.net (Greg Hermann)]

 I have had engines with non-synthetic oil which lasted
>better.
>
>Synthetic, no doubt, is better regarding engine deposits, and thermal
>breakdown.  It's value for reducing wear in on the road conditions (ie. not
>racing), however, is questionable in my mind.
>
>> People are getting 200k+
>> miles out of everything from VW's to 'vettes to Subaru's using regular
>> organic oil simply by keeping to a good service schedule.
>> Synthetic gives
>> you extended drain intervals, a wider operating temperature range, and
>> overall lower internal friction. Going from $1/qt to $3.50/qt
>> to get this
>> is worth it. Going from $3.50/qt to $10/qt for Redline isn't, to me.

The trick with a mineral oil vs. a mineral base synthetic like Mobil 1, vs.
an n-butyl polyol ester base synthetic like Red-Line is to look at the film
strength numbers. The film strength of a polyol ester base oil is higher,
by an integral factor, than the others. And--film strength, particularly at
high temperatures, is what prevents engine parts wear (as caused by metal
to metal contact) in an engine in high load/high performance situations.

Pay your money, and take your choice!

Greg


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