This one would be better, http://www.penriteoil.com.au/pis_pdf...ust%202012.pdf it's closer in viscosity to the PAS fluid and any fluid that meets CAT's TO4 spec is a more advanced oil that shows lower wear levels than one that meets their TO2 spec..
And this is Penrites specific ACE fluid which would be a little better than the above two when the ambient starts to drop as it's a semi-syn with a much higher viscosity index (VI) than the CAT or tactor fluids.
http://www.penriteoil.com.au/pis_pdf...Aug%202012.pdf

