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Best performance fluid for T-5

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Old 02-25-2007, 11:09 AM
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stang8689
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Default Best performance fluid for T-5
I have a brand new T-5Z I am going to be installing this weekend and want the best fluid. I have been using Royal purple Synchromax but have also heard good things about Redline. Which one do you guys think is better and are there any other good ones?. thanks
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Old 02-25-2007, 11:19 AM
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AdderMk2
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Default RE: Best performance fluid for T-5
DO NOT USE SYNTHETIC FLUIDS FOR BREAKING IN A NEW TRANSMISSION!!!!!

get some regular ATF and fill it up. run the tranny for between 500-1000 miles, then drain it out and fill it with either royal purple, or redline
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Old 02-25-2007, 11:26 AM
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stang8689
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Default RE: Best performance fluid for T-5
did not know that thanks for the info
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Old 02-25-2007, 01:26 PM
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Arno
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Default RE: Best performance fluid for T-5
ORIGINAL: AdderMk2

DO NOT USE SYNTHETIC FLUIDS FOR BREAKING IN A NEW TRANSMISSION!!!!!

get some regular ATF and fill it up. run the tranny for between 500-1000 miles, then drain it out and fill it with either royal purple, or redline
Why?
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Old 02-25-2007, 01:45 PM
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ROTTITANK
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Default RE: Best performance fluid for T-5
GM synchromesh
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Old 02-25-2007, 02:12 PM
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silver91gt
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Default RE: Best performance fluid for T-5
ORIGINAL: ROTTITANK

GM synchromesh
I dont think so, never put this gm crapin there, it needs some dextron 3 ATF.
I used some amsoil synthetic ATF, it was recommended on the tag on my T-5Z







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Old 02-25-2007, 02:31 PM
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mcfomco
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Default RE: Best performance fluid for T-5
I am using the Mobile 1 Synthetic ATF.
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Old 02-25-2007, 02:48 PM
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silver91gt
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Default RE: Best performance fluid for T-5
and adder, if it is bad to use synthetic fluid with a new trans, why is it recommended by the manufacturer?
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Old 02-25-2007, 05:42 PM
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Arno
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Default RE: Best performance fluid for T-5
Typical hit and run for adder again.
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Old 02-25-2007, 05:46 PM
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Scout2232
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Default RE: Best performance fluid for T-5
ORIGINAL: silver91gt

and adder, if it is bad to use synthetic fluid with a new trans, why is it recommended by the manufacturer?
I was going to ask the same, Astroperformance recommends synthetic also.
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