FrankPZ

Update: So changed the gearbox oil again, this time put in Castrol Transmax 75w90. Has not completely cured it, 2nd slightly stiff when cold, but change is much better and I can live with it.

Been doing a bit of research . So my 2004 DE , like many others, suffers from stiff second gear when cold. This is most likely due to worn inner surface of the syncro ring.. As the oil heats up it lubes the syncro and makes the surfaces "stick" and gear change is then fine. This is not a huge problem but would still be nice to sort. The ring works on friction so if this is the case by all means try new oil but do not add Molyslip as this reduces friction and that is the opposite of what you want. Adding Molyslip has not helped one bit on my Z and now I know why. I used Motul 75W85, has anyone had better luck with a different oil?

Hello to all members. Will be looking to buy a 350Z in the near future and have joined up to get as much information as I can so as to make the right choice. Current second car is a Mercedes CLK convertible and looking forward to replacing it with the Zed. Great forum.