better fluid for ZF 5 speed - Ford Powerstroke Diesel Forum
 
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post #1 of 8 Old 12-11-2010, 06:11 PM Thread Starter
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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

97 Single Cab F250 4x4 5 speed

Swapped D-60
Locked front and rear
160 sticks
Wildman Tunes
Hood Stack
OFE clutch
T500 HPOP
Linex rockers
35" MTR Kevlars
and a bunch more...
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post #2 of 8 Old 12-11-2010, 10:14 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


2016 F450 6.7L XLT 4x4Dump, bone stock
1994 F250 7.3L XLT 4x4 ZF5 , Centurion, 4" Lift, 6637, Gulf Coast Bypass Filter, Big fuel tanks, dana 60 swap, No longer dually
1997 F350 7.3L XLT 4x4Dump, E4OD, 4 in exhaust, TS 6 position, 3/8 Trans line+external filter
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post #3 of 8 Old 12-12-2010, 02:30 AM
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Red line mtf is what I've used in my 96 with awesome results

'97 Red F250 CC XLT ZF5 3:55s, Dana 60, SD springs all round, 'jectors, IC, 6.0 fan, TW files, VisionX lights and other stuff.

'96 White/Silver F250 SCSB 4X2 (all stock for now)... 4:10's E4OD.

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post #4 of 8 Old 12-12-2010, 04:59 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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post #5 of 8 Old 12-12-2010, 05:25 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.

94.5 PSD Dually Crewcab F-350. Uglee, stock and reliable.
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post #6 of 8 Old 12-12-2010, 04:33 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.



2012 F350 XLT 6.7 CC LWB SRW
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2012 Montana Mountaineer 326 5th Wheel

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post #7 of 8 Old 12-12-2010, 04:40 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

Catlin...

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with a super-chip tuner

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5 speed ZF
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Originally Posted by JJFLASH View Post
Lol what kind of frankenstroke did you buy???

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post #8 of 8 Old 12-12-2010, 04:49 PM Thread Starter
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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

97 Single Cab F250 4x4 5 speed

Swapped D-60
Locked front and rear
160 sticks
Wildman Tunes
Hood Stack
OFE clutch
T500 HPOP
Linex rockers
35" MTR Kevlars
and a bunch more...
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