C4 tranny question.

simbotto

New Member
Jan 13, 2007
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i recently bought a 90 mustang with a C4 transmission and it has a small leak. id like to know what kind of transmission fluid to put into it BEFORE i actually have to add it. (so i can go buy it and have it ready) so my first question is....what transmission fluid should i put in an automatic 3 speed C4?

my second question is what oil should i use when i do an oil change? its got Speed-Pro Hypereutectic Pistons and i was wondering if that matters? thanks guys.