<VV> BG Services for Corvair powerglide transmissions

[James Davis]

Err, you might want to pick up a copy of the 1965 Corvair shop manual 
and reread page 0-8 on "Transmission - Powerglide".  GM recommends a 
2 qt fluid change at least every every 12,000 miles.  According to 
Castrol, any time  a conventional transmission oil exceeds 160 F the 
life of the oil is compromised.  Using a synthetic or synthetic blend 
can improve its temperature tolerance.  Just how much Castrol 
wouldn't say.  Then there is the contamination issue.  Remember the 
Corvair Powerglide has no transmission oil filter, only a filter screen.
Jim Davis

At 03:20 PM 2/23/2006, Brent Covey wrote:
>Hi Randy,
>
>Normally the fluid in a Powerglide will not need replacement for the life of
>the car, Corvair Powerglide is a very cool running transmission and the
>fluid doesnt degrade much over time. If you were pushing a Corvair hard
>enough to be hard on the transmission you'd be going thru engines fast, the
>trans is harder to overheat than the engine by quite a long shot. In 25
>years I havent encountered an overheated seal in a Corvair Powerglide; on a
>regular GM car theres often heat damage.
>
>Hope thats some help,
>Brent Covey
>Vancouver BC
>
>  __________