<VV> Is 'straight weight' oil BETTER or just sufficient (and easier to find) ? (was Corvair Tall Tales)

[Charles Lee]

I'll have to review all those posts, but I don't believe it was determined
that multi-grade is just easier to find and "just as good" but not
necessarily better than straight weight?

When was this discussed? (so I can limit my search through the digest)



-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Frank DuVal
Sent: Tuesday, November 01, 2011 6:51 PM
To: virtualvairs at corvair.org
Subject: Re: <VV> Corvair Tall Tales ~ Is 'straight weight' oil better ?

Urban legend!

Use a good quality multigrade oil for best results. See Richard's web 
site for more explanation.

http://www.widman.biz/uploads/Corvair_oil.pdf

This has been covered many times here.

Just avoid the sunburst in the front of the bottle is also a recommendation.

I used to use straight 30 in the summer, but stopped that over 15 years 
ago. I'm a slow learner, but you beat me!

Frank DuVal

On 11/1/2011 8:54 PM, Charles Lee wrote:
>
> As I remember, Corvairs required 'straight weight' oil, 30W or 40W, and
> multi-grade was taboo?
>
> Was it an 'urban legend' or was it true that, when 'generic' mechanics put
> multi-grade oil in Corvairs, that the engine heat would break the oil down
> and cause lack of lubrication and overheating ?
>
> Today's multi-grade oil is better, but is it OK to use it in a Corvair?  I
> look for single weight, but it's harder to find.
>
> Charlie
>
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