I was wondering if anyone had any ideas for me. This morning it was -30 degree C (-22 F) and the dmax did not want to start. I resently put a new block heater cord and element. I also had a coolant flush. I am running a 5w40 synthetic oil. The truck will turn over no problem but I have to physically keep it running. Is there a possibility that I have bad fuel or is this just the fact that we are having sub arctic temps right now. I use Howe's antigel fuel additive.