Changing the transmission fluid in my 2006 wrangler 4.0l 6 speed manual. After finally finding a way to get to my drain plug, through the skid plate. What fluid do y’all suggest? I have some Pennzoil synchromesh..
Nix on the conventional Pennzoil Synchromesh where most reviews are not so good. Most here, me included, enthusiastically recommend the full synthetic Redline MTL for the NV3550 and NSG370 transmissions.
I used Amsoil in my 6speed. Meets OEM ratings or did at least during the time I purchased the fluid.
This stuff changed on a monthly basis on what meets or doesn’t based on what supplier is willing to pay the Manufacturer the dough to get them listed.
Go Redline. Save the other stuff for a different vehicle. Or you (like me) may likley be draining it out to put Redline in later. The difference in gearbox shifting can be dramatically better. Trust me. I learned the hard way.