Djmayer wrote:

I’m wondering about block heaters and oil weights about now. Is this a long term regular thing or a one time deal? Running these in the sub-zero temperatures is not exactly unheard of but there are things to do.

In any case 5 minutes with out oil pressure sounds like it could get real expensive.
Dave

very infrequent. just if heavy snow hits. if it's much colder (like the zero it is right now) I would light up the diesel-fuel space heater and warm it good. it's in a shed with one side open. I won't be using the 9U until spring in light of the pressure question. The 17-A and 3T are better in heavy snow anyway and they both start easily with oil pressure right away, they're just not as maneuverable in tight places. if zero or below I would still warm them first.