have a 250 back home in california where my dad bought it new and put 124k miles on it. later this year im going to be bringing it up to wyoming with me for school and want to get down what i need to know where to start for getting it ready. now where im at during the winter it usually gets down to low teens during the night and high 20s to low 30s during the day with some more extreme temperatures mixed in. so what do yall do? looking for fluids, de gel, or anything yall got to offer.
That isn't arctic conditions by any means, actually doesn't sound all that different from what I run into in SE Mass during December through February.
As mentioned check anything electrical... glow pug relay, starter, under valve cover harness, glow plugs... whole nine yards...
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I could also clean your EBPV tube and make sure the sensor works.
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A Stancor relay is worth its weight in gold when it comes to cold starts. I am not one to push mods but this one is definitely worth it, my truck starts no issues down to zero with conventional 15w40 in it.
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As far as other fluids, keep on top of your coolant testing... make sure the freeze point is within spec. A diesel rated 10w-30 or 5w40 do help a bit with cold starts so if you have the extra scratch they aren't a bad option. As far as the other fluids (x-case, trans, diffs etc) synthetic is nice but not necessary IMHO at those temps. One point on SRW trucks, they spec a synthetic 75w140 from the factory.
If you are in school, I am guessing you will be doing some short hops? If that is the case, plugging the truck (or setting a heavy duty timer) in three hours prior to your departure and using a winter front will help get fluids to operating temps quicker and keep them there, especially if your not going to be working the truck hard.