Mobil1 Synthetic ATF

[troy2]

Does anyone know for certain what weight Mobil1 Synthetic ATF is. I did a few searchs and came up with anywhere from 5wt to 15wt. I would like to know for sure. Also, can the average rider tell much difference in suspension action between 5wt and 10wt fork oil?

Thanks,
Steve

 

[Jeff Howe]

In the ISO Viscosity classifications it is definitely not a 5, more on the upper edge of 10wt. Generally, your viscosity rating at 40 deg C is equivalent to the ISO classification, in this case the ATF's number is 35, and the viscosity range for a ISO rating of 32 ranges between 28.8 and 35.2. A 32 ISO viscosity rating corresponds to a 10wt SAE rating. If you really wanted to, you could call it a 15 I guess if that made you happy. But the numbers in comparision with some 10wt fork oils are very close.

 

[ml36]

if you go to mobil one's website, they state that it is 7.5 wt. i use it my forks.

 

[Wakisashi]

Shocknut,
Would you have any interest in a PAO based synthetic hydraulic oil with a ISO grade of 32 and SUS@100'F of 160 at 7.40 a quart? It may not be worth having , I just ran across it in a catalog at work today. I don`t have the full specs on it.

 

[Jeff Howe]

Nope, but thanks anyway Wakisashi.