Ok, whwn I don't drive my truck all day when it's like 10 degrees outside my truck won't start at all I don't think it my battery I have a red top optima battery and when I try to start my truck it's at 11.6 - 12 volts and if I do get it to start its at 14 - 15 volts so let's say it's not the battery what else could it be that's causeing my truck to not wanna start? Could it possibly be the spark plugs or oil? Maybe the gas has water I'n it?
Please let me know thank you
Please let me know thank you