Best tranny fluid ??
 

FOR T-45 ??

Lots of people seem to like Red Line. I'm not an expert on this, so any other comments?

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'97 Cobra, K&N, Flowmaster, subframes, 4.10 gears, Steeda Tri-Ax shifter, Steeda G-Trac 3, Cobra R wheels w/ Goodyear F1s

My Ride

I have experimented with several. The stock Mercon V, Valvolene Synthetic Mercon V, GM ATF, and finally GM Synchromesh. Without question, GM Synchromesh was the best shifting fluid. Mercon V was 2nd. And GM ATF 3rd. The worst one was Valvolene. Too slippery for the T-45. Watch out for synthetics in your trany for this reason.

Chris

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ChrisM
98 Tan on Laser Red Rag Top Cobra
FMS 4.10s,SHM Speed compensator,Pro-m 77mm MAF,Bassani x-pipe,B&B Triflows,KB Subframes,Cobra Chrome R's,Nitto 555's 255/40/17,Vortech S-Trim,C&C Performance PowerTube,Autometer Gauges and A pod,Houston Performance Tune,Global Lowers,SVO Uppers,Tokico Illuminas,SVO 9 mm Wires,MSD DIS-4 Ignition, Cooling fan switch, fog light rewire, SVO Fender Flares,SVO C Springs,Tremec T45 Ford upgrade, Steeda Tri-Ax
94GT off-road H-pipe

GM Synchromesh without question. Yeah, it's $8.00 a quart, but it's worth it. I used it in my '88 LX 5.0 for 136,000 miles, and I've got it in my T-45 in the Cobra now.

The part # is 12345349, and you can get it from any GM car dealer.

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'96 Cobra - K&N, Pro-M 77, Pro 5.0 shifter, 3:73s, Cobra "R"s, Steeda control arms, pulleys, springs and caster/camber plates.

I like amsoil it is great.Just ask Fred at Steeda. It's in all their car's.

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97 cobra, 4.30 gears, mac long tubes, off road h-pipe, dis4, factory five control arms, 31spline axles, locker, 13.00@106 with nitto's

The one thing i've heard most over the years is to stay away from synthetics!
Thanx for the help everybody!