Originally Posted by TWP723
If you use any kind of synthetic, you have to use synthetic oils from then on. You can't revert back to regular oil.
Motorcraft 5W20 Synthetic Blend in gas trucks from the factory if it's a Ford.
Not true. Especially on a new engine. You can go back and forth as you wish. I use the Amsoil 5W-20 and change it once a year. I do 10,000 miles a year with it.
The generator uses the house battery to start. The generator will charge the house battery but not the coach battery. When I am off the grid, I bring along a small charger that plugs into the cigarette lighter to top off the Ford battery when I am on the generator as I use the truck 12V ports at night to charge cell phones, iPads etc.
The only time the coach and chassis batteries are linked together is when you hit the white button. That links them together so that if one battery goes dead, you can use the other to jump start your engine or generator.
My suggestion, fill the gas tank. Best if you can find ethanol free but some places are hard to find. Use a high quality fuel stabilizer. Put a little more in than recommended. Run the truck and generator until the new stabilized fuel is run through. Change the oil with whatever you wish. Park it. Disconnect both batteries and take them back home. Put them in the basement or some place that is somewhat warm. Once in a while, put the batteries on a battery tender to top them off. Stay warm the rest of the winter and take the batteries back with you in the spring and reinstall. There will be no surprises of a dead or cracked battery. No need to run up there once a month and spend an hour listening to motors run. The batteries will last longer. The seals and generator will be just fine for the three to six months.