Keep in mind I'm a noob to the diesel world,,,,, So twice now the batteries have run down on my Duramax from lack of use. I'm starting to look for an inexpensive tender that I can mount to the vehi...
Newer vehicles have a small draw. small enough so the computers don't draw it down over several days, but enough that if it sits for extended periods it will get drawn down. My X used to get pretty drawn down after 3 weeks, it would start, but crank very slow!