Just wondering, how much oil pressure is too much? It is getting chilly here now, was -5 last night, and when I got in and started it, the oil pressure needle went from zero, slowly to the white line past the 40psi marking, after it warms up , it drops down to 40psi. I am buying the stuff to put an oil pan heater on it, and a transmission heater, but won't get them on until next weekend. I do plug in the block heater, and it definitely helps the truck warm up quicker. I don't let mine idle to warm up, as I do not have a high idle unit, I let the pressures come up with me keeping the RPMs at 1000, then I drive it slowly, keeping it in 1st to keep the RPMs up and shifting as I can speed up.