thephatOne

i just got a hand me down 2000 i30 from my dad well more like 4 months ago but the atf is slighty brown, no trace of red though, i was wondeirng if it safe to flush out the transmission fluid because its getting notchy and hesistant sometimes.

flthere

iTrader: (2)

I got 107k miles when I got the ATF (ex)changed at Jiffy Lube. Everything is normal, but the transmission shifts are smoother than before. I am not sure what ATF the Jiffy Lube guys put it but I'll go for Mobil or Redline next time when I get it done ...

S00NR1

iTrader: (3)

Ya, do a flush and fill and I would highly suggest using either Mobil 1 or Amsoil synthetic ATF. You will need somewhere between 10-12 quarts to do a full flush and it is well worth the money. There will be an immediate difference in shift smoothness and your tranny will run much cooler. If you are lookin for a great price on Amsoil ATF, pm talking horse and he can get you a good deal.

thephatOne

im just worried the tranny might crap out if i switch out the atf at this high of miles. should i worry?

PLUMMAXSE

iTrader: (2)

The tranny will surely crap out if you don't change it!!

bladerunr

iTrader: (14)

I did my 94 with around 150K miles, used cheap ATF and had no problems.

thephatOne

okay i still havent had time to do my flush, and my transmission is really notchy and slips from time to time, am i still okay? or is a flush a waste of money and ride it till the tranny gives and replace it

S00NR1

iTrader: (3)

LOL no. Do the flush now considering a new tranny will cost you several times more than the flush.

flthere

iTrader: (2)

Maybe a drain-n-fill now and a complete flush-n-fill after say 15k miles helps ?!?

thephatOne

okay i think ill go synthetic and ill try to do it tommorow, but with synthetic, do i need lubeguard black?

S00NR1

iTrader: (3)

You don't need anything with synthetic.....but if you feel like you must, Lubeguard is a decent product.

schmatt

I would suggest dropping the pan and cleaning that out too. Usually that is why the tranny goes when you flush it with high miles. The detergents in the new ATF wash all the crap up and run it through the tranny. It's not that hard, and you'll be amazed at how dirty it is. I think AMSOIL has a document on their website talking about this subject. They say that with all these machine flushers nowadays, no one ever drops the pan to clean out the sludge and clean the magnets off anymore. Just read the sticky on ATF flushing to find out how to do it.

I would definitely suggest switching over to AMSOIL.

thephatOne

yeah my mechanic is doinge everything from dropping the pan to cleaning everything, and im still contemplating using dino atf or synthetic atf...how good is atf good for 30k? and synthetic 50k or what...because id rather spend more money for 20 extra thousand miles haha

S00NR1

iTrader: (3)

OK, for the last time -- go with the synthetic ATF.

schmatt

synthetic atf not only lasts longer, but has a wider temperature range that it will operate properly over.

thephatOne

got it, thanks guys...i have an appointment for tuesday, so hopefully itll be all good by then! and i just switched to mobil one syn today so i guess ill go with mobil 1 syn atf.