transmission fluid
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What is the best transmission fluid to use??I have valvoline dextron 2 atf in it right now..I had royal purpal in my last tranny an did not like it made it very notchie
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Yes there is a best. Its what the manufacturer says it should have. Save money on "mystry" oils that are bigon $$ but short on long-term delivery ( do they have a warranty?) . Stick with dexIII ATF and save your $$ for more worth while mods.
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Apparently, something didn't work out with this fluid, so GM re-released a DexIII-based fluid specifically for manuals, under part number 88861800. I don't think boiling points & other specs were ever publicly released for Dexron fluids (proprietary, etc.), so there you go.
Picking "the best" transmission fluid can always turn into a science lesson, just as with any auto fluid. I still say pick a decent synthetic & be done with it. Amsoil Synthetic ATF is a bit pricey, but it's the one I've seen recommended the most for these transmissions.