What kind of motorhome is it? A class A, C or Super C. Gonna guess class C or A puller. FWIW I tow all over the west with a Class A pusher and have no issues at all except climbing some of the big hills where I am slowed to 45. Otherwise no issue and if I were in the Midwest would have no issue running 75+

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"