Why not? I use 0-40 mobile 1 in all my stick cars.works great! first Daytona We had was my Daughters we put 10-30 non synthetic in it and in the winter you couldn't shift it!be sure it is not synthetic motor oil
This guy works at NVT. The Amsoil mtx fluid he is talking about is 75w90. I have a bottle in my trunk. Now neon trans parts do differ from the older mtx of the TD world, but it is certainly something to consider.mach 1 terry said:I was talking to the engineer who designed the T-350 and T-850 and he recommends using Amsoil synthetic synchromesh manual transmission fluid. It's very similair to the original T-350 oil but is better because it is full synthetic. It also has the friction modifier that you have to add to ATF+4 in the T-850. The SRT guys can use this also and they don't have to add anything to it. I think it's $9 a quart from Amsoil.
He said the ATF+4 was only used to cut costs and says it's garbage compared to the original T-350 oil or this Amsoil stuff. I'm sure the royal purple synchromesh MTX fluid will work just as well and I know it has the friction modifier in already also.