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Old 12-11-2010, 07:11 PM
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better fluid for ZF 5 speed

i have some regular old ATF and i got the bronze upgrade synchros put in when i had my trans rebuilt.

they shift good, but i wish it was a little smoother, theres a little crunch when its cold now and then.

what would u guys run in there between these?

AMSOIL - Synthetic Multi-Vehicle Automatic Transmission Fluid (ATF)

AMSOIL - Synthetic Manual Synchromesh Transmission Fluid (MTF)

Red Line Synthetic Oil - Gear Oil for Manual Transmissions
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Old 12-11-2010, 11:14 PM
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I would use the synthetic amsoil Automatic transmission , the syncromesh is gear oil which cant be used. Never heard of red line before
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Old 12-12-2010, 03:30 AM
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Red line mtf is what I've used in my 96 with awesome results
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Old 12-12-2010, 05:59 AM
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AMSOIL all the way. AMSOIL uses only the best base stocks available on the market today to make everything they offer. Their ATF has been around a long time and is a proven fluid. Before you run and buy at retail though, get a hold of me. As a dealer here on the org, I can offer you a better price; saving you 25-35% off the retail.

Take care,
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Old 12-12-2010, 06:25 AM
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I used Mobil 1 tranny fluid. Had the same occasional 'crunchiness' (mostly when cold) and now it shifts smooth as silk. Also did the synthetic in the rear end at the same time. Very satisfied.
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Old 12-12-2010, 05:33 PM
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Mobil 1 tranny fluid is what I put in on my last change. No issues at all with cold weather shifting, very smooth for a 5 spd with 168,000 miles behind it.
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Old 12-12-2010, 05:40 PM
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i'm running pure gear oil in my truck .... shell brand .... and a couple other guys around here have ZF5s running auto fluid and they mesh end grind all the time and mines still smooth , never grinds , and has no problem shifting in -20*C weather
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Old 12-12-2010, 05:49 PM
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Quote:
Originally Posted by jcart View Post
Red line mtf is what I've used in my 96 with awesome results
i heard about a lot of guys runnin this.

so i guess its between the redline MTF and the amsoil atf
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