FYI if anyone is interested. Basically 5w-20 is for colder climates and 5w-30 is for warmer climates. My husband always used 5w-20 in our other motor homes, and was going to do the same in this one. Since we live in FL, 5w-30 it is! Learn something new every day.
https://www.yourmechanic.com/article...oils-so-common