That’s the plan, 6 month intervals at most. The pic is about 2000 miles from last oil change.Fuel dilution is probably the cause of the high reading oil level. Have Oil Analyzers do a Used Oil Analysis to see what percentage of fuel is in the oil. I'd just change the oil often and not go over 6 months/5k miles. Maybe even shorter like 3 months/3k miles with Supertech 0/5w20.