Red line oil for the T-5

Does anyone run Redline oil in their t-5's? Am I supposed to used the Redline 75/90 MT-90 for the t-5's? Thanks.

The recommended lubricant is Dextron II or III

Isn't 75/90 for the rear end?

I use Dexron 3 ATF in the T-5 ...

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86 TC 3" Exhaust w/ Cat, 17 psi, 1.5" lower, Vovlo intercooler, Saab 900 cooling system
73 Austin Mini 1275

It is NOT recommended to use synthetic lubricants in the T-5, the blocker rings have a special coating on them and most synthetic oils will eat away at this coating and over time will make the clearances larger and beyond their acceptable tollerances.

Brent



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1985 Cougar XR-7 5-speed: C&A 5.7" Rods, Wiseco Pistons bored .030" Over, C&A ZGS Rings, ARP head/main studs & rod bolts, Esslinger Main Straps, Ported Big Valve Head w/Ranger Roller Cam, Port Matched Upper & Lower Intake, Motorsport FM Intercooler, Ported E6, Original T3, Gillis Valve, 3" DP w/No Cat & ’88 TC OEM Dual Exhaust, K&N, ’88 TC Front A-arms & Spindles w/ 73mm Calipers, ’88 TC Rear w/Disc Brakes, 3:73 Gears, Eibach Pro Kit, Koni's, Energy Suspension SB bushings, Hella H1/H4 headlight conversion, 140 Speedo.
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1986 asc/McLaren EuroCoupe - 1 of 47 made
1971 Ranchero
Hi-Jumper SSIII w/2.3L Turbo

I've been runnin Castrol Synthetic ATF for 2 years now, no problem.
Shifts smoother, easier.

Why would synthetic eat away at parts?
Even regular ATF tranny fluid, Dextron etc, have high detergents in it.

There are several upgrades to the T5 tranny according to the Fordmuscle site. One is to run synthetic oil instead of Dextron II or III. Here is what they say.....

Synthetic ATF
First of all don't use anything but ATF (Mercon-Dextron II / III) in your T5. Unlike many manual transmissions, T5's do not work with gear oil or MTF. While many people question the value of synthetics, we've found that the T5 shifts smoother and there is less grinding with synthetics. Since you are only going slightly less than three quarts, it's worth spending the $10. Plus it will last longer and won't need replacing as often as conventional ATF. We like the Aamco synthetic blend, but Mobil one full synthetic works great as well for a few extra dollars.

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Tony Sceia...Found one...but it need aalot of work & many parts....please help me find them all....Still tring to build that awsome car ! ! !

Originally posted by GaryS#2:
Why would synthetic eat away at parts?
Even regular ATF tranny fluid, Dextron etc, have high detergents in it.

I am only passing along what Borg Warner (original maker of the T-5 trans.) and Dana (current maker of the T-5, T-45, and Tremec trans.) recommends.

They are only talking about the coating applied to some of the internal parts, not the actual parts themselves.

Most likely they are erroring on the side of caution because there are some synthetics out there do not have detergents added to them such as a those designed strictly for use in a racing environment.

I'm a dealer for Redline, Torco, & Royal Purple, and I have synthetic fluid in my engine & rear-end but I still put in regular old Dextron in my transmission for my own piece of mind. [Image: smile.gif]

Brent