[Shotimes] ATF choices, help

[Carl Prochilo]

My son's 95M just got that Coastal stuff put in it.  Shifts fine.  Having
an MTX drain plug helps my piece of mind in that if I don't like it down
the road it will be easier to replace.

My 92 has Mobil 1 ATF and works fine too, however I'm not sure the
cost/benefit factor is worth it.
-- 
Cheers,
Carl Prochilo
92 Ultra Red Crimson

On Thu, September 1, 2005 11:39 am, Ron Porter said:
> I went through that with a 93K-mile '91 tranny (A Fiz tranny that I put in
> my '95) that should have had the "paper" synchros. Tried a few different
> fluids, and the worst was Mobil 1. It didn't want to shift cold or hot.
>
> Finally tried bottom-of-the-line Coastal 80w-90 from AutoZone. Worked like
> a
> charm, although technically it wasn't supposed to! And I caught hell from
> the purists on these lists that said my tranny would blow up any day. My
> take is that, if the fluid makes the tranny shift well, that's the best
> fluid.
>
> Did you try Mobil 1 ATF, or the Mobil 1 tranny fluid (forget exactly what
> it's called now)?
>
> Keep trying different stuff......something will click.
>
> Ron Porter
>
> -----Original Message-----
> From: shotimes-admin@autox.team.net [mailto:shotimes-admin@autox.team.net]
> On Behalf Of Bill Murray
> Sent: Wednesday, August 31, 2005 11:38 PM
> To: TechSHO@topica.com; shotimes@autox.team.net
> Subject: [Shotimes] ATF choices, help
>
> As some may remember, I have been having clutch issues since June that I
> have finally resolved.  After dropping the transmission for the 5th time,
> I
> replaced the TOB again and polished the quill sleeve using 0000 steel
> wool.
> I now have a smooth operating clutch and combined with the Fidanza
> flywheel,
> it works very well.  I am running the Mid-West SHO/Clutchmasters Stage 1
> and
> the $20 AdvanceAuto TOB kit.
>
>
>
> Each transmission removal has required a draining of the fluid as well.
> So
> far I have run Mobil 1 synthetic, generic/Wolfshead ATF, and now Castrol
> ATF
> +3.  I had recently changed the Mobil 1 so when I put the trans back up
> the
> first time, I reused the fluid.  Shifting was very notchy and a double
> clutch was the only way to get the lever fully into gear, sometimes it
> wouldn't go at all.  Before the initial removal the engagement was nice
> and
> smooth.
>
>
>
> I removed the Mobil 1 and used generic ATF for the next few removals and
> shifting was back to normal, though the clutch pedal was still gritty.
> Not
> wanting to keep it in for long, I went to the parts store looking for a
> better fluid and purchased the Castrol.  I am currently running this
> fluid,
> but I am not happy with the shifting.  7 out of 10 times, it shifts fine,
> the other 3 are very notchy and sometimes require a double clutch to
> engage
> the gear.  I have missed the shift a couple times completely too. I
> noticed
> that this fluid is +3 and not the Mercon/Dexron III/IV that I had thought
> it
> was.  The bottle says that it is formulated for Chrysler and Hyundai
> transmissions specifically, and has a "shock resistant" logo.
>
>
>
> Today at NAPA I was looking at their fluids and noticed they had Valvoline
> Mercon V formulated for 96+ Fords, also with the "shock resistant" logo.
> Before I spend more money on fluid that won't work well, has anyone tried
> this?  I'm thinking that maybe the shock resistant additive is a friction
> modifier that is causing the sometimes rough shift action.  Should I keep
> searching for III/IV?  I've been to 4 parts stores and none of them have
> the
> III/IV.  I'm even contemplating buying more Mobile 1, but at ~$25 for 3
> quarts I'd rather not have to dump it in the used oil container at Pep
> Boys
> again if it doesn't work.
>
>
>
> The tranny has roughly 50k on it since it was rebuilt with new "paper"
> blocking rings and the Quaife.  I'm doing a track event in September, and
> I'd like to run a decent fluid there that can take some heat, but still
> shift well.
>
>
>
> Thoughts, ideas, comments, should I go get my Nomex suit?? ;)
>
>
>
> Bill
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