Mobil 1 Mobilube PTX 75W-90 SKU: 00004320420L

1995 993 C2 37K miles manual. Noticed much improvement when starting out from a cold Minnesota winter. Eases into third gear much easier with much less crunch. As good as this oil is it's still oil and way overpriced,.

This made the shifting better in by 997.1 C4S when the tranny is warm. Not as big an impact when cold as others have reported.

The ptx is an amazing product. Best tranny oil for porsche but way too expensive. Initially I thought it was a gallon based on the pic, boy was I wrong!!...had to reorder 2 more. The shifting is much smoother now because of the ptx but it's price is outrageous $40/quart.