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The mkiv Supra Owners Club

Help changing Transmission fluid


mikeyb10supra

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hey guys

 

Any advice on changing the transmission fluid in my auto box??? I heard you need to check the level with it in Drive and in neutral or something and there is a hot and cold marker on the dipstick.....I dont understand....help!!!!

I dont want to overfill either as I know this screws things pretty bad as well :(

 

any help much appreciated

 

Thanks

 

Mikey

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You have a simple drain or a full flush. The drain is simple , jack up undo auto box sump plug. Best done hot after about 20 miles. Refill is through the filler tube, use a funnel and pour slowly, about 2L. You must check with engine running, fluid hot after putting the stick through neutral and every gear a few times, on level ground. ATF Type IV fluid only.

 

 

 

Loads on here about it and the full flush.

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yeah, you can get almost 5 litres out using that method.

 

One thing that puzzles me is why Toyota have fitted the drain plug on the UPPER side of the sloping little sump.

It's like they actively try to stop you from draining more an a couple of litres.

Reading some of Mycroft's theories in older threads, I just don't know what to think --- Toyota haven't been very open about this design either.

 

(Mycroft: hero or zero? :taped: )

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You have a simple drain or a full flush. The drain is simple , jack up undo auto box sump plug. Best done hot after about 20 miles. Refill is through the filler tube, use a funnel and pour slowly, about 2L. You must check with engine running, fluid hot after putting the stick through neutral and every gear a few times, on level ground. ATF Type IV fluid only.

 

 

 

Loads on here about it and the full flush.

 

 

Right im geting really worried now, ive had Dextron III in it for around 5000 miles as I was told this is what I need to use.......I have read that I should stay away from this at all costs and use the type IV stuff.

 

Can you or another experienced member please give me an honest answer and justification why this is to be avoided. Would this fluid have fu*ked my auto box up I am really hoping and praying not :( plesse can someone clear this up as its really worrying me now.

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As Terminator said, ONLY USE TYPE IV in the autobox mate.

 

The effects of using *anything* else could vary from 'being OK' to 'needing a new box soon'

Are you feeling adventurous lately?

 

http://www.the-dirtiest.com/images/enfpubl.jpg

 

 

eh?

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Right im geting really worried now, ive had Dextron III in it for around 5000 miles as I was told this is what I need to use.......I have read that I should stay away from this at all costs and use the type IV stuff.

 

Can you or another experienced member please give me an honest answer and justification why this is to be avoided. Would this fluid have fu*ked my auto box up I am really hoping and praying not :( plesse can someone clear this up as its really worrying me now.

 

Speak to Simon (oilman).

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I've done some basic research on this and drew a blank --- no conclusive answer.

Even the 'oilman', who can get any lubricating running fluid couldn't find any alternative to Toyota's Type IV.

 

There are knowledgeable people who privately believe that Dextron III might be OK, but there is no hard evidence either way.

 

Looks like Toyota have kept info close to their chests on this one.

Thankfully it's not too expensive though, you can get a 5litre canister for £45 or so.

Get on with it.

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Phew well thats a releif as long as it is not really reccomended but you can still kind of get away with using it......I thought it was going to be the same as putting petrol in a deisel engine if you know what I mean......I have just ordered some IV stuff from envy arriving Monday so will change then........I guess for now I wont be driving it hard again at all until its changed!!

hope it has'nt caused any serious damage.....what do you reckon??

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it's an expensive and stressed box why go cheap?

exactly :)

 

There are a few false economies that you could do without.

Say the fuel filter --- I got one from my local motor factors for £20 odd, thinking that the Toyota one is double the price and virtually identical.

When Dude showed me the original (priced a couple of quid more) I realised what a plonker I was. The non-original didn't have the shield (you have to reuse the old one) and the threads are not cut as well, so you may end up with sealing issues for what could have been a straightforward swap.

Doh! :moo:

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