I am moving from California to northern Idaho. Should I change the oil and Hydro fluid to a winter grade? The tractor is a BX2370 with approx 56 hours, it had the 50 hours service.
mmmm......
If IT just had the 50 hour service, do you have a record of what was placed in it? 10w30 in crankcase? S-UDT2 in hydraulics?
IF that is the case - don't change a thing - but I would invest in a block heater.
The two oils mentioned are "typical" from Kubota. NOW if you have UDT in the hydraulics - and I doubt that - I would change to S-UDT2.
A block heater will do more for you tractor than changing the crankcase oil. And if you use a block heater, once started - allow the tractor to run a bit to have the hydraulic oil heat up as well.