Transaxle Fluid

[george996]

Hopefully this will help someone. I replaced my transaxle fluid last summer with Mobil Synthetic Gear Lube 75W-140 last summer and had no issue at the time. However, when the ambient temperature dropped into the 40’s and 50’s here in Southern CA this winter it became difficult/stiff to shift into 2nd and 3rd until the trans heated up.

I reviewed all the posts and decided to replace the fluid with Porsche transaxle fluid (about $100 for 3 liters from the dealer). I probably would have tried Shell Transaxle but could not find it and was anxious to make the change.

I am pleasantly surprised with the difference. There is definitely a significant improvement (reduction in force). Also, after only a few minutes shifting feels as normal as a warm trans. The biggest improvement is when the trans is cold but I notice a little more smoothness when warm.

[Benjamin Choi]

Hopefully this will help someone. I replaced my transaxle fluid last summer with Mobil Synthetic Gear Lube 75W-140 last summer and had no issue at the time. However, when the ambient temperature dropped into the 40’s and 50’s here in Southern CA this winter it became difficult/stiff to shift into 2nd and 3rd until the trans heated up.

I reviewed all the posts and decided to replace the fluid with Porsche transaxle fluid (about $100 for 3 liters from the dealer). I probably would have tried Shell Transaxle but could not find it and was anxious to make the change.

I am pleasantly surprised with the difference. There is definitely a significant improvement (reduction in force). Also, after only a few minutes shifting feels as normal as a warm trans. The biggest improvement is when the trans is cold but I notice a little more smoothness when warm.

every manual shifter i've owned.. s2000 (best), E46 m3 w/ UUC (short shift kit) and now 911 c4s (B&M unit) has a notchier shift feel upon a cold start than once warmed up.

i'm not sure trying to swap fluids for a smoother first morning out of the garage result is all that desireable/value adding. heck, i don't shift above 3k until after having driven at least 5-10 miles.. just trying to get all the car's fluids warmed up.

i just stay with the stock fluid. call it good and enjoy the drive. thx for sharing tho.