I don't track petrol.....
After intensive investigation and research I have calculated (regardless of toad or not) that we are getting excellent mileage. We (DW and I) seem to consume about 4 ounce of hootch per 30 miles of road once the chairs and awning are out. As for fuel? I do it everyday on the road just prior to "jacks downs" and have always averaged under the hundred in budget per travel day. Point is I don't track mpg on the coach, I am on holiday....
L'IL Foot" 2014 Sunseeker 2300
"Harry" the JK toad in the mirror