Paddy

Swepco 201 here and no problems even at the track during the winter months.

ryano

i think i am going to try the delvac since i think its close to what came in the car and then report back. That and i guess i need to not try and shift the car like a racecar shifting slower would save the syncros anyway

IXLR8

I use Mobil 1 75W-90 LSD and have no issues.

What did the factory use...and does it really matter?

Mike J

I have used Swepco exclusively in my 911's for the last 15+ years...no issues, and I have no reservations to keep using it.

I also use Swepco in my engine... :-)

Cheers,

Mike

ryano

I believe theres debate about what the factory used... but no i dont think it matters. Whatever works in your car is what you should use... it just might take me a few tries to get the right one

DanQ

Right. You could ask redline about it for confirmation.

fast_freddy

I put Swepco in my car late 2008 and got an intermittent whine from the tranny with "OK" shifting. The whine became more intermittent last month so I changed to Mobil 1. The whine vaporized and the shifting got better inside of five minutes of driving.