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Manual Transmission Fluid

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Old 06-19-04, 08:17 PM
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Manual Transmission Fluid
Gonna swap the fluid in my transmission this weekend when I change the clutch anyone know what's reccomended replacement??? Sorry if it's a dumb question but I want to make sure and do it right. Thanks...
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Old 06-19-04, 08:21 PM
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Get a good syn and you'll be fine. RP/Redline/Neo/etc.
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Old 06-19-04, 08:49 PM
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I assume I should use a gear oil, yes? What weight?
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Old 06-19-04, 08:56 PM
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RTFM
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Old 06-19-04, 08:58 PM
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Originally posted by pearlyellow
I assume I should use a gear oil, yes? What weight?
75w90 will be fine.
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Old 06-19-04, 09:11 PM
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Originally posted by PVerdieck

Get a good syn and you'll be fine. RP/Redline/Neo/etc.
Redline MT-90 et al. don't have an adequate amount of friction modifiers in them for the synchros. Shifting is smoother when the fluid is cold, when it is warmed up, there tends to be an *increase* in notchiness when quick shifting. IMO, the higher cost of synthetics isn't worth it. You can use the less expensive regular transmission fluid that's recommended in the owner's manual and it'll work just fine.
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Old 06-20-04, 11:38 PM
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Hey thanks for the advice to read the manual PVerdieck, gee I would never have thought of that on my own. Guess maybe it would help if I had one.
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Old 06-20-04, 11:52 PM
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NEO lube, sold by Mazdatrix.
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Old 06-21-04, 01:01 AM
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mobil1 75w90... you can get it at your local kragen or autozone. i have it in my transmission and differential.
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Old 06-21-04, 07:43 AM
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Originally posted by pearlyellow
Hey thanks for the advice to read the manual PVerdieck, gee I would never have thought of that on my own. Guess maybe it would help if I had one.
http://www.iluvmyrx7.com/3rd_gen_manuals.htm
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Old 06-21-04, 09:30 AM
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Originally posted by pearlyellow
Hey thanks for the advice to read the manual PVerdieck, gee I would never have thought of that on my own. Guess maybe it would help if I had one.
The search button helps too.
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Old 06-21-04, 11:21 AM
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NEO synthetic is best, but expensive.
RedLine 75W-90 is good enough.

RE-Amemiya race cars use both.
JUN use NEO
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