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Jeremy, Do you recommend ATF in forks?
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Posted by: a.ktmfan---------------------
I read a post where you were siad to have recommended ATF and was trying to confirm and to ask why ATF over fork oil?
Thanks
Posted by: Jeremy Wilkey---------------------
AKTMFan,
Beacuse the viscosity improves clicker responce. It's cheap and avlaible.
Regards,
Jer
BTW.. Donot use in WP shocks!
Posted by: a.ktmfan---------------------
But you do recommend in WP forks.
Posted by: Jeremy Wilkey---------------------
I do.
Jer
Posted by: MikeT---------------------
Jeremy, Is there a weight you would say ATF is equivalent to?
Posted by: DanS---------------------
7.5wt
Posted by: John K---------------------
I work in an Automatic Transmission Plant, and I asked the same question the other day. Apparently the Dexron type fluid that is usded has a poor viscosity index, and can attack seals. I'm sticking to proper fork oil!
Posted by: xenasdaddy---------------------
john k,
i am not arguing here, but wouldn't the atf also attack auto. tranny seals if that were the case? what chemical do they say is corrosive with the seals?
thanks,
xd
Posted by: John K---------------------
It doesn't attack all materials. The seals in our transmission are all suitable for the fluid. However I'm not sure if those in forks are. I'll quiz the guy at work again as he seemed to know what he was on about.
Posted by: John Curea---------------------
Jeremy has worked with the engineers at Mobil for quite a long time before they came up with Mobil 1 ATF. He had a very demanding list of requirements that he needed for a suitable suspension fluid.
After alot of testing Mobil ATF 1 proved its' worth.
Take Care, John
Posted by: John K---------------------
Uh oh, I'm starting to think I jumped in too early here 
By ATF are you guys reffering to Automatic Transmission Fluid? Which is something I have heard can be used in forks.
I can't help feeling that I seem to have offended members in this forum for trying to post information that I thought may be relevant. I wasn't trying to step on anyones toes. In my defence I did list what type of Transmission fluid I was speaking of.
Posted by: xenasdaddy---------------------
you did not offend me.
xd
Posted by: John Curea---------------------
John K
No toes stepped on here !!!!
You only get answers with questions !!!!
Posted by: John K---------------------
so .... ATF = Automatic Transmission Fluid ?
Posted by: John Curea---------------------
Yes!
Must be Mobil 1 ATF, average price 5.00/ quart
Posted by: John K---------------------
Ok, well that clears things up a little. Seems our difference was the brand. As I said the dexron type.
Posted by: JasonJ---------------------
I have used ATF in forks on a couple of bikes ever since I was redoing the front end of my Honda VFR and the shop manual said ATF could be used. I was putting a set of Race Tec emulator valves. I called them up and they said that would be fine. I had some on the shelf and used it. I used it in two dirt bikes after that and never had any trouble. I belive it has some sort of seal conditioner in it, as auto tranies have about 2 million small seals in them. I have put it in the gear box of 2 stroke bikes that were a bit leaky and it seamed to swell the seals up and not leak as bad a even 90 W gear oil. Smell better too! 
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