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Transmission Fluid, Manual Gear Oil - How To Replace #18962 Jul 15, 1:33pm Jul 15, 1:33pm
Joined: May 2002
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isaac OP
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Transmission Fluid, Manual Gear Oil - How To Replace
Manual Gear Transmission Oil Change Instructions
August 15, 2001 - CelicaGarage

Linked Image

You will need the following items

2.3 liters of 75w90 GL4 or GL5 gear oil (GT uses only 1.9 liters)
Suggest using Redline 75w95NS oil. (don't use Redline 75w90) without the NS
Full Synthetic is the best!

10mm, 17mm, 24mm socket wrench

1. You will need to take the driver's side plastic engine cover off.
Linked Image

2. You will need to remove the fill and drain plugs as shown below. Make sure not to lose the metal gasket with the bolts.
Linked Image

3. After it's drained, use a funnel and tube like this. Open the Hood and drop the tubing down into the engine compartment and into the fill hole. Plug up the drain hole.
Linked Image

4. Fill with the proper amount of oil. You have the right amount when the oil starts to leak out the fill hole. should be about 2.3 liter for a GTS and 1.9 liters for a GT. Plug up the fill hole and replace the plastic cover on the bottom of the car. You are done.

My car feels so much smoother now when shifting. It's like a got a new car now.

Source...
http://www.celica-garage.cityslide.com/articles/article.cfm/522/35586

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: isaac] #18963 Sep 27, 8:19pm Sep 27, 8:19pm
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Doppelganger
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I just changed the oil in my transmission today, and the picture was helpful, but I discovered that the GT is laid out a little differently. (I'm assuming the picture above is from a GTS.)

The GT has the fill plug to the left of those wires, and it's 24mm, just like the drain plug.

180926-tranny.jpg
Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: Doppelganger] #18964 Sep 28, 11:15pm Sep 28, 11:15pm
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Steven
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Don't use Redline 75w90ns. Use Redline MT90. It's for our transmissions which have synchros. MT90 has an ingredient or something for synchros which is crucial.

Remember, Redline MT90.

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: Steven] #18965 Sep 28, 11:20pm Sep 28, 11:20pm
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Also make sure you have a large oil catch pan to catch that stuff. I only caught 1/3 of the oil and the rest got on my garage floor.

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: Steven] #18966 May 29, 10:20pm May 29, 10:20pm
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I used Mobil 1 Synthetic Gear Oil (75W-90) and after the trans service the gears shifted so much smoother. Definitely make changing your trans fluid a must!!!

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: Schultz85] #18967 May 30, 4:21pm May 30, 4:21pm
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What about the tranny filter? Where is that located?

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: isaac] #18968 Jun 25, 4:26pm Jun 25, 4:26pm
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there is no filter in manual transmission.

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: isaac] #18969 Jul 16, 11:18pm Jul 16, 11:18pm
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Ok my question is where does the fluid go? I've looked all over my engine bay to look for where the transmission fluid goes in but i can't find it if anyone has a pix of this i really appreciate it if you can post it. I have a 2000 GTS if it makes any difference thanks.

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: isaac] #18970 Jul 24, 5:09pm Jul 24, 5:09pm
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California
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Just a Tip when draining the oil. Loosen the fill plug about half-way but do not removed it. Then removed the drain plug. This is to prevent it from splashing all over the floor. Remove the fill plug when the oil starts to drain slowly.
I just found this out after spilling it all over the place.
Well. good luck guys.

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: isaac] #18971 Sep 8, 1:12pm Sep 8, 1:12pm
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Maka
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what about automatics?


[Linked Image]
Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: Maka] #18972 Sep 8, 1:16pm Sep 8, 1:16pm
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Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: Doppelganger] #18973 Oct 5, 4:29pm Oct 5, 4:29pm
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St. Paul, Minnesota
sxyimports125
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Originally Posted by Doppelganger
I just changed the oil in my transmission today, and the picture was helpful, but I discovered that the GT is laid out a little differently. (I'm assuming the picture above is from a GTS.)

The GT has the fill plug to the left of those wires, and it's 24mm, just like the drain plug.


^^^ Could you circle the "fill plug" and the "drain plug" in your picture. Thanks thumbsup

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: sxyimports125] #18974 Nov 30, 7:33am Nov 30, 7:33am
Joined: Aug 2003
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Fort Wayne, IN
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here you go...

1953358753-180926-tranny.jpg
Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: isaac] #450788 Sep 24, 8:19pm Sep 24, 8:19pm
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how are you supposed to take the plastic cover off? more specifically the plastic screws?

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: survivor] #450789 Sep 24, 9:46pm Sep 24, 9:46pm
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Originally Posted by survivor
how are you supposed to take the plastic cover off? more specifically the plastic screws?


Find what type of plastic-screws/plastic-plugs you have, and use one of the methods mentioned below:

If you cannot unscrew with a hex socket...

you can
1) insert a flat-head screw driver in to one of the slots (only if the plug has these slots. if not, skip this and read the link below)
2) twist the center piece to pop it out
3) pull the whole plastic retainer straight out

or the most common method
https://www.celicahobby.com/forums/...over-clips-how-to-remove-or-replace.html

Re: Transmission Fluid, Manual Gear Oil - How To Replace [Re: isaac] #451667 Jun 4, 5:39pm Jun 4, 5:39pm
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The fluid that came out my transmission came out looking like mud. I guess the previous owner never replaced the transmission fluid. I added redline mt90 just now, I hope everything works fine afterwards.

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