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normally i will recommand oil change every 5k or every 6 months (whichever comes first, say a very low mileage car might be good to do it at 4k or 3k interval ~ if that's what u get for 6 months, easier to keep record on things); and all fluid flush every 25k, or 2 years ~ again, whichever comes first.

now the thing is, ur car already has 255k, god knows if ur transmission fluid was very dirty or not?! I have told many ppl to change their oil after 800 to 1500km, that's just because their oil is sooooo dirty! i think transmission wise i have asked ppl to come back 1500km to 2000km after, again, that's because of their fluid is so dirty.

sazabi is correct, u wouldn't be able to drain all the transmission fluid out, without taking off the tranny and drain the torque convertor; depends on make, some cars u can only drain 30% (about 2.5L out of 8L), and some cars u can drain up to 66% (6L out of 9L)...as soon as the new fluid goes in it will mix with the old fluid then u will have to flush them out before they get too bad again....

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as far as i recall most toyota can take 3.5L to 4L for drain and fill...yet still it's only about 1/2 of what the entire tranny takes...

i think Audi and VW says lifetime for their ATF, when my friend did his at 75k, dealer was telling him his tranny is going to be busted soon...

i have seen tranny being damaged by the machine, some time it's not good when the tranny is in poor condition; automatic transmission is driven by hydraulic pressure, if the tranny has worn out and dirt is somewhat holding up the pressure (can also make it sluggish); but when it's too clean, have seen car that lost one gear afterwards...overall, it's 2 to 3x more than a regular drain and fill

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problem is lots of ppl dun even know their tranny is dying...

and multiple fluid flush actually helps it to last longer, even tho it might not regain all the power (hydraulic pressure)...

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wait, are u saying the light for the shifter? like where it shows PRND2L, tiffiant?

you only have to change light bulb, not the fluid bor...

as for 97 corolla, it just uses regular dexon III, some newer toyota uses Type TIV and even WS now...so can't use cheap dexon no more...

and some toyota has differential fluid that u should change while doing transmission fluid, as they will mix together internally ~ but change seperately

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97 corolla has a low transmissoin fluid light? i didn't notice that tim (was just working on one day)...

or u mean low in engine oil ar?

u have to pull the dipstick out and see what is wrong before u start topping it up, and if it hasn't been changed for awhile it's actually better to change it instead of topping it up too

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原帖由 tiffiant 於 2008-3-16 14:57 發表
if there is no lights on p r n d 2 l, that means something wrong with the transmission fluid........

nope, that only means a burnt light bulb!

but if u haven't changed that for a long while, better also have it checked too

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原帖由 tiffiant 於 2008-3-22 22:55 發表
so, i have to read the tranny map in order to see whether my car has space or not.......

how does ur car drive without the issue of "transmission light"?

i guess u should seek some real professional help, cuz seems like you dunno much about cars and it is a little bit hard to explain to you?!

if u want a better answer, u can pm me and i can give u my # lol

guess posting up here will just keep confusing everyone (u and us)...

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then it's just the gear indicator on the console, a cheap light bulb to replace (pretty expensive for a tiny bulb, i think it's close to $10 but last u years, while the older corolla use a $0.50 bulb)...

labor will probably be about $30 tho, i guess no biggie if u have been driving around like that for 4 years...

yet if u said u haven't changed ur transmission fluid for so long, better do it soon ;)