......CVT!
Nissan's CVT transaxle
Here's a quote from the article which hints that further research, vis-a-vis towing, may be called for:
"
Heat is a major concern with a CVT design. The Nissan CVT can operate at 200 degrees C, so a special oil is needed that will not break down at these high temperatures. The Murano also incorporates three transmission coolers to prevent the oil from overheating."
HTH
Denny_A