When should i put my front cover on that the dealer give me. Should i have it on when pullin a camper? Thanks

when daytime temps are no higher then 35-40 degree's. Its still a little early yet to put it on.

Dmaxalli, I live in So Calif where day time temps have been in the lower 60's latley and my Engine does not get up to "fully" warm. The normal for me is about one click below 210. and now I may be a couple of clicks below that. Its probably normal but in my old gasser I would think that maybe my thermostat was stuck open.....any opinions. Thanks Bill.....2002 HD