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Old 07-12-2003, 01:43 PM   #1
Philossifer
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Default T-5 Tranny?

Anyone ever heard of running 10W/30 synthetic oil in a T-5 instead of Mercon Automatic Transmission Fluid?

The guy at the local transmission shop says they do it all the time! He claims, they shift smoother and run much quieter.

I don't know..... Doesn't sound right to me?
Any comments?
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Old 07-12-2003, 03:52 PM   #2
Roket
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yeah, i have heard it...but i use redline tranny fluid
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Old 07-14-2003, 09:19 AM   #3
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Cool

if you want a fried tranny use it. otherwise the redline fluid is best.
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Old 07-14-2003, 07:53 PM   #4
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Why not use synthetic transmission fluid instead? I've run Mobil 1 synthetic trans fluid for years.
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Old 07-17-2003, 02:08 PM   #5
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Don't the non World Class T-5's use gear oil like rear ends do? That's what I've heard, maybe i'm wrong.
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Old 07-17-2003, 02:57 PM   #6
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Default Tranny fluid

Quote:
Originally posted by QuantumMotorsports
Don't the non World Class T-5's use gear oil like rear ends do? That's what I've heard, maybe i'm wrong.
I've never heard of that. Rearend fluid seems a bit to thick for a tranny.
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Old 07-18-2003, 03:45 AM   #7
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omg, i wouldnt try that, but i was told you can use type-f atf fluid, and that it keeps it cooler, i tried it, and everything went well, but i ended up going back to cheap ole dexron/mercon, why spend money on high dollar synthetics? besides, if you race alot, synthetic, or 10/30 isnt gonna save it from breaking if it;s gonna break, it will break, regardless what fluid is in it, why not just use what for intended?
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Old 07-18-2003, 09:02 AM   #8
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Older manual transmissions use gear oil, the only reason T5s don't is because the bearings are so small and the gear oil doesn't penetrate them, this is what I'm told.
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