Could anybody tell me if I can use Putoline ATF Dexron 2 in my Beta Rev 3 250 (2005) thanks.

No, just use manual transmission gearbox oils for mutli disc wet clutch. Quite sure that brand you mentioned makes it.

I used various ATFs in my Rev 3 for over a decade with no problems.

ATF 2, 3 or ford g spec will be fine, Dont buy putoline, You can get 5 liters from a motor factors for about 15 quid.

 

I've used ATF in all sorts of trials bikes since the 80's never had a problem.

 I always used ATF in Beta`s.