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peterbrown77 · 09-19-2014, 02:34 PM

I changed my gear lube to Mobil 1 75w90 last summer..... and deeply regretted doing so. It was almost impossible to shift into 2nd for the first 20 minutes of driving and all the other gears were stiff as well. To be honest, I've used Mobil 1 for 20 years believing it was the best money could buy. I still use it in the engine - but not the transaxle.

I can't speak for the Swepco but I went back to the OEM Porsche lube and immediately the problems went away.

IMO, stay with the Porsche stuff - even if it's a few dollars more.

09-19-2014, 02:34 PM	#2
peterbrown77 Registered User Join Date: May 2011 Location: Essex, CT United States Posts: 301	I changed my gear lube to Mobil 1 75w90 last summer..... and deeply regretted doing so. It was almost impossible to shift into 2nd for the first 20 minutes of driving and all the other gears were stiff as well. To be honest, I've used Mobil 1 for 20 years believing it was the best money could buy. I still use it in the engine - but not the transaxle. I can't speak for the Swepco but I went back to the OEM Porsche lube and immediately the problems went away. IMO, stay with the Porsche stuff - even if it's a few dollars more. __________________ 2002 Boxster S, Arctic Silver, 18" Turbo Wheels, 6-speed