[Healeys] Redline MTL

[Dave Russell]

Hi Bill,

Not to my knowledge. "Friction Modified" can mean two different things. 
IE more friction or less friction. The Healey transmission synchronizer 
rings can benefit from an oil that has more friction (less slippery)  so 
that the synchros can grab harder & quicker when you shift. It also 
makes OD engagement more positive.  Redline MTL & MT-90 have higher 
friction  coefficients  than some other lubes. On the other hand, motor 
oils usually work better with a lower friction coefficient, except 
during ring break in.

Some more modern transmissions seem to benefit from a lube that has less 
friction, lower friction coefficient. I'm really not sure if the GM 
"Friction Modified" has a higher or lower friction coefficient than 
standard. If it means less friction, it would be worse in the Healey 
transmissions.

I do know that on automatic transmission fluids, "Friction Modified" 
means that the lube has less friction to promote smoother shifts.

Regards,
Dave Russell

wericars at aol.com wrote:

>Has anyone tried GM Synchromesh Friction Modified yet?
>
>
>Bill
>Boston area
>65 BJ8