We have a Monaco Vesta 32 with Max Force 7 engine. Have put on 9600 miles, had oil change @ 4600 miles since we were traveling to Yellowstone, Glacier National Park and Canada. Have put 5000 miles and checked oil every 400-500 miles. Have seen no change in oil level. Engine appears ok, mileage with coach is 13.6 over 9600 miles. Before we went out west mileage here in Ohio averaged over 15 MPG. Coach weighs 2900#.
Sorry, weight 29000 #!