Forum Discussion

kmb1966's avatar
kmb1966
Explorer
Sep 26, 2018

Considering Newmar with Cat Diesel - heat?

I am considering a 2003 Newmar Dutchstar with a Cat Diesel that has become available in my area. This unit has 33,000 miles on it, 2,000 hours on the Onan. This unit belongs to a neighbor friend of mine, and I have been around this unit for about 10 years now, camping together. I have spent the last several weeks going over this unit, checking it all out anyway, and then suddenly a co-worker tells me that I should be aware that "DIESELS LIKE TO OVERHEAT IN THE HOT SUMMER IF DRIVING IN WEST TEXAS HEAT 110 DEGREE WEATHER".
I have never heard of this at all. My gas unit has never overheated but the Onan gas generator did once.
My question is, IS THERE ANY TRUTH TO THIS ? I mostly drive in the summertime because my wife is a school teacher and we mostly get to go on vacation in the summer when it is very hot. We like to travel west (which puts us crossing Texas).
Class A
  • kmb1966's avatar
    kmb1966
    Explorer
    Sep 26, 2018
    Thank you for the responses so far. I asked this person for more details of this overheating claim. It goes like this:
    The diesel engine is in the rear, the radiator is in the rear. His theory is that when or if there was ever an OIL LEAK, the oil leak while driving gets on the radiator, clogs the radiator not allowing it to cool. Even after the oil leak is repaired, the radiator remains clogged until it is removed and cleaned. Hmmmm............
  • JoeH's avatar
    JoeH
    Explorer III
    Sep 26, 2018
    Your co-worker is misinformed. Look at all the trucks,buses, as well as RV's that are on the roads in west Texas.
  • Branson_N_Tucso's avatar
    Branson_N_Tucso
    Explorer II
    Sep 26, 2018
    The only thing that will over heat is the inside of your motor home. Hope your air conditioner works good

About Motorhome Group

38,707 PostsLatest Activity: Feb 20, 2025