John Deere HyGard & HyGard LV (Low Viscosity) are fantastic in most MTs I've tried it in. It's GL4 rated, high quality and not pricey. Available at your local dealer.
In a colder climate I would use LV, for a heavy-duty or hot climate I would use regular HyGard.
In a colder climate I would use LV, for a heavy-duty or hot climate I would use regular HyGard.