[Qfrank]

One of my local Porsche dealerships nearby in Sarasota, Suncoast Porsche is only using Delvac in ALL transmissions. (It is a Mobil product) $52/gallon which is not bad.I just wanted to go with Redline or Swepco, but they dont stock those anymore. Has anyone used this, and is it recommended for our cars with factory <acronym title='Limited Slip Differential'>LSD</acronym>?



All their racecars have it, but not sure if i want to try it. I am getting ready for some DE's and autocrossing, and i am freshening up all the fluids.



Thanks everyone.



FQ

Partial Post: Please Login or Register to read the full post.

[flash]

the last time i had to deal with a transmission i used a shopvac. does that count?



seriously though - never heard of delvac. that being said, my builder swears by mobil 1 in the transaxle. it may actually be delvac.

Partial Post: Please Login or Register to read the full post.

[Qfrank]

Never heard of it or saw it until today, they had shelves of it, in different weights. And it is clearly a Mobil product.



Do i have to stay away from GL-5? correct, our cars, should use a GL-4 someone said, and do not add a <acronym title='Limited Slip Differential'>LSD</acronym> lubricant?



Thanks Flash.



FQ

Partial Post: Please Login or Register to read the full post.

[Tom030]

[quote name='Qfrank' timestamp='1388790418' post='154105']Never heard of it or saw it until today, they had shelves of it, in different weights. And it is clearly a Mobil product.



Do i have to stay away from GL-5? correct, our cars, should use a GL-4 someone said, and do not add a <acronym title='Limited Slip Differential'><acronym title='Limited Slip Differential'>LSD</acronym></acronym> lubricant?



Thanks Flash.



FQ[/quote]

I'm looking at my 1993, 968 Owners Manual and it says to use SAE 75W-90 API classification GL 5

Approx 2.75 liters.

~tom

Partial Post: Please Login or Register to read the full post.

[986boxster1998]

I've used both Royal Purple and Redline 75W90 and swear by the Redline product. It's $15/ quart from most places and the 968 will use just under 3 quarts. The vehicle that used the Royal Purple developed a high pitched whine like an air plane turbine shortly after the fluid service which was confirmed to be the limited slip making slightly more noise with the new fluid and not a bearing issue.

Partial Post: Please Login or Register to read the full post.

[Qfrank]

I am going with Redline.

Partial Post: Please Login or Register to read the full post.

[Ryan]

I have been using Delvac oil in my diesels for years. I have a tractor and and a big ZT mower that both use it. I did not know they also made tranny fluid.

Partial Post: Please Login or Register to read the full post.

[Tom030]

I just had the transaxle lube changed using Porsche brand (Shell) synthetic. Previously used Swepco. Anybody had any experience with the Shell/Porsche product?

~tom

Partial Post: Please Login or Register to read the full post.

[speedysprocket]

Are either the Amsoil manual transmission or gear lubes acceptable for these transmissions?

Partial Post: Please Login or Register to read the full post.