dfinnegan

The Shop Manuals call for "Optimoly HT" to be used on the splines of the drive shafts and on the threads of the large 32 mm wheel side nut as well as the 8 bolts that secure the shaft at the diff.

The PET calls out the tube of optimoly need for these tasks on page 401-10 as part no. 000.043.110.01 grease 1 tube 100 g which the parts manager at the Porsche dealership said was "Optimoly NR".

The PET also has a reference for part no. 000.043.004.00 which it calls Optimoly HT.

So, do I use the 000.043.110.01 NR

Or, do I use the 000.043.004.00 HT

And, what's the difference?!

JasonAndreas

Optimoly NR is a CV joint grease equivalent to Swepco 101 and Optimoly HT is a copper based high temperature thread lubricant. So you use the HT on the splines and threads and pack the NR or equivalent into the CV joint and boot. I know one difference between Optimoly HT and the permatex or equivalent high temperature stuff that you can buy at your local auto store is that the HT will not require you to adjust the torque specification. I can take some photos showing the physical differences which is mostly just the size of the copper granules. I'm not sure if I still have a tube of NR but it looks like any dark CV joint grease. The HT product is expensive (even from Sunset but their price was half of MSRP) but you can completely reassemble several 964s and 993s with one tube.

dfinnegan

Thank you, Jason. Once again.