Hi, I am new to the forum to some extent. What transmission oil is recommended in a 77 280z?

Really appreciate support.

Thanks.

It needs to be GL4.  Redline MT-90 is a favorite among a lot of owners.  I have it in my ZX 5 speed. Some have said a certain type of GM Synchromesh is good as well.  Not sure the exact type.  Perhaps those in the know will chime in. 

36 minutes ago, MH77280Z said:

Hi, I am new to the forum to some extent. What transmission oil is recommended in a 77 280z?

Really appreciate support.

Thanks.

Manual or auto?

Just now, Zed Head said:

Manual or auto?

Its a 3-speed Auto.

The FSM says Dexron.  OReilly says that their Valvoline product works.  https://www.oreillyauto.com/detail/b/maxlife-5150/engine-parts---mounts-16774/transmission---transaxle-16780/transmission-parts-16520/at-fluid---vehicle-specific-13555/3db5c75d447e/valvoline-maxlife-synthetic-transmission-fluid-1-quart/maxlifed/4773348/1977/nissan/280z?q=dexron&pos=13

Yes it says Dexron in the manual. I have been using Transmission Fluid, Moble-1 ATF D/M in my 69 Cadillac.

This one confirms to Dexron III-H standard. How about this?

Valvoline MaxLife Synthetic Transmission Fluid - seems to be a reasonable choice. Both Orielly's and AutoZone have this as recommended. Plus it seems to cover range of applications. Unless someone has a differnet opinion.

Recommended for use where DEXRON, DEXRON II, III and VI, Toyota T-IV and WS, MERCON(R), MERCON(R) SP and LV, Allison TES 389, Nissan Matic-D, Matic-J and Matic-K, Honda Z-1 (except CVT), Mercedes NAG-1, Mitsubishi Diamond SP-II and SP-III and many others are required.

 

The population of Z owners with automatics is small, maybe even tiny.  I can't remember who has one but if you start a new thread with "Automatic transmission" in the title it might catch an eye.   Valvoline makes good products though, probably can't go wrong there.