Yikes! It will be pushing/reaching 90 in my former stomping grounds in SW Montana. Be careful & have a safe trip, Dean.
The most heat-stalled vehicles I've ever seen was on that minivan-eating grade of I-15 from Nevada down into California.
Could have given new meaning to ". . . went crabbing & got pinched," and it's too bad that the hapless crabs didn't form an attachment with their captors.