<VV> Corvair Tall Tales ~ Is 'straight weight' oil better ?

[Frank DuVal]

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
>