I suggest you add Montana to your location of Lavina in your profile.
Here we are at Post #29 and the critical information of THE ALTITUDE OF YOUR PROPERTY is unknown. Had Montana been included in your profile someone would have asked your Montana elevation by Post #5.
Altitude reduces diesel engine power output fairly quickly. Over 6,000 feet a turbo-charged diesel engine is recommended in most tractors, in most situations.
It's about 3400 ft, not real high..