What engine is in that motorhome???

$400 for enough parts for 2 blocks? That's a cry for help

Funny thing about RVs, they don't last as long as regular cars nor do they get used as much, yet they cost so much to buy then cost to get rid of. At least opt for the smaller cheaper trailers or campers.
Random question: why aren't motorhomes diesel instead of gas? I'd imagine they'd be more efficient
Newer ones are Diesel.