Transmission Fluid Poll

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What kind of transmission fluid do you suggest?

Poll ended at Mon Jan 12, 2009 3:05 pm

Royal Purple 75w90
5
26%
Redline 75w90NS
4
21%
Straight Synchromesh
3
16%
Other
7
37%
 
Total votes : 19

Postby my3sgte » Wed Jan 07, 2009 3:05 pm

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1990 Toyota Celica

Postby kulangflow » Thu Jan 08, 2009 3:49 am

I found Valvoline Durablend in stock at Autozone for $6.49/qt, so I went ahead and picked it up. I'll do the drain/refill over the weekend and hope for the best. I'll report back at how well it does with my synchro-challenged tranny.

Thanks for all the replies!
1986 Celica GT-S (sold)
1991 Supra Turbo (sold)
1988 ST165 IMSA GTO Champion
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Postby kulangflow » Fri Jan 09, 2009 2:44 pm

I did the change-over last night to Valvoline Durablend 80w90.

Wow, it was really annoying to pump in the new fluid. After the third quart, I filled a small bucket with really hot water and placed the last two bottles in it. This thinned it out and helped a lot.

Anyway, I could tell the difference right away with the shifting. It still doesn't shift nearly as well as my '86 GT-S did, but it's a ton better than it was. Second gear is the only problem gear left. The rest are nice and smooth now.

If I get bored one of these days, I might drain a quart of it and replace with a quart of Synchromesh to see if that helps a bit more. I'm decently happy with it right now though.

Thanks again for all your suggestions!

-Brian
1986 Celica GT-S (sold)
1991 Supra Turbo (sold)
1988 ST165 IMSA GTO Champion
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Postby Jason88AllTrac » Fri Jan 09, 2009 6:18 pm

Other: I also run a mix... mostly Redline MTL, but a quart of Mobil1 (GL5) which has the EP/hypoid additives for the center diff. It shifts WAY better than with regular valvoline GL5 I threw in after doing the clutch. I have had very good luck on other cars with redlines MTL, shockproof, and royal purple.

kulangflow wrote:I did the change-over last night to Valvoline Durablend 80w90.

Wow, it was really annoying to pump in the new fluid. After the third quart, I filled a small bucket with really hot water and placed the last two bottles in it. This thinned it out and helped a lot.


LOL... pumping it in is the tool way to do it. I just run a hose down to the fill from above, pouring it into a funnel is sure hella-easier than trying to wiggle a little pump back an forth for half an hour.
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Postby kulangflow » Fri Jan 09, 2009 6:51 pm

Jason88AllTrac wrote:
LOL... pumping it in is the tool way to do it. I just run a hose down to the fill from above, pouring it into a funnel is sure hella-easier than trying to wiggle a little pump back an forth for half an hour.


Yeah, apparently. The pump was lame. The reason I used it is because somewhere on here the pump was recommended over the gravity drop. I'll definitely be using the gravity drop next time.
1986 Celica GT-S (sold)
1991 Supra Turbo (sold)
1988 ST165 IMSA GTO Champion
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Postby Rick89GTS » Tue Oct 13, 2009 3:47 am

I used a suction gun for the rear differential but will try the gravity drop for the tranny.
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Postby RafaCalde » Tue Oct 13, 2009 6:51 am

i'm using 1 qt synchromesh an 4 qts 75w90 gear oil. all royal purple. tranny doesn't mind it one bit. no grinding what so ever. i actaully have to work hard to grind it.
Rafa

1990 White ST185 w/ Carlos Sainz motor, ecu, and tranny
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Re: Transmission Fluid Poll

Postby Rallly » Fri Dec 11, 2015 2:44 am

What do you guys think about mixing 4quarts AMSOIL Severe Gear and 1quart Pennzoil Syncromesh? Anyone try this in their All Trac Transmission?
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