Rennlist - Porsche Discussion Forums - Royal Purple in pre 84 5sp

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toofast928

02-16-2005 09:21 PM

Royal Purple in pre 84 5sp

Time to change the MTM fluid. I was using the Redline 75-90w but it's rated at GL4. Royal Purple is rated at GL5, OEM. Anyone have any expierence using RP? Does 1-2 shift improve?

mark kibort

02-17-2005 03:05 AM

the only fluid i noticed a difference was amzoil 75-90 with the older transmission. it was a noticable difference too.
MK

hupp	02-17-2005 08:40 AM

I've got Royal Purple in my '79 5 spd. Most noticeable difference was shifting when cold. It was not a huge impovement though.

Vlocity

02-17-2005 03:20 PM

What do you guys think is the best transmission oil for an early model with limited slip? I'd like for the shift characteristics to be a little better when the car is cold.

Regards,

Ken

toofast928

02-17-2005 09:09 PM

Thanks, I picked up Redline gear oil, GL5.

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