Atf In Manual Box

[blackjet]

hello all, just purchased my 2nd skyline and will post some pics soon. it has a whining noise in the box, which i have been informed is a common problem but probably not a massive convern. it still changes gears well, although it needs a new throw out bearing. what im wondering, because it has an RB30 bottom end would it be a skyline box or vl turbo box, is there any difference if so how can you tell. and is there any truth in the fact that running ATF in a manual gearbox is better than normal gearbox oil as i have been told.

[T04GTR]

its like putting sewing machine oil in your engine. it will work but....

[blind_elk]

its like putting sewing machine oil in your engine. it will work but....

Doubt it. ATF is basically a hydraulic fluid, gearbox needs a lubricant.

[R33LIN]

Doubt it. ATF is basically a hydraulic fluid, gearbox needs a lubricant.

+1

i personally wouldnt be using ATF. ive read on here its definitely not good for the manual box. just use castrol vmx80 (i think thats it!?)

cheers

[Duncan]

umm I don't think its that simple, in fact some boxes including the R34 6 speed manual specify ATF not gearbox oil.

But generally ATF is just a trick to cover up badly worn synchros.

[Stronzo]

hi,

It will work somehow. ATF isn`t just hydraulic fluid -- it`s a gear oil too. Auto boxes have gears and they are lubricated with atf. For example Castrol Transmax-Z fluid has both Dexron and api gl4 75w80 certificats.

And as Duncan said -- it is recommended to use atf in bnr34 getrag gearboxes.

So ordinary box will work with atf, and worn, crunchy box will work even better -- because of low vicsosity of atf it will allow to switch gears smoothly. But the protection for teeth of the gears with atf is worse -- so, i think that using atf -- you save synchros but kill gears. The other question is how long it will take to worn a gear -- i don`t know the answer because i trust nissan engineers and use what they recommend.

Edited July 6, 2007 by Stronzo

[2rismo]

Smurf Blood FTW!