I have a 1994 grand caravan with a 4 speed automatic that needs some transmission fluid. The owners manual says to use ATF 7176 that is no longer available. ATF 3 is also not available. I have seen info on the internet that states the new ATF+4 is good to use for the older transmissions fluids. Is it ok to use ATF+4 in this 1994 dodge 4 speed automatic?