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koda55's avatar
koda55
Explorer
Sep 16, 2013

2008 four winds mandalay

I am looking at a 2008 Thor Four Winds Mandalay 40G with the ISL425 engine. Does anyone have any info good or bad about this rv.
  • We have a 2006 40ft. Mandalay with the 400 Cummins. Love it and have had no problems.
  • Well, we have the same engine and it has been no trouble at all. You have the particulate filter that will go through a regeneration about once every 10,000 miles. Maybe more depending on how you drive it.

    Our engine has thrown a couple of codes over the years and were repaired by a Cummins dealer. Nothing major, just adjustments and/or filter changes. It has been a very smooth running engine/transmission combo. With the one that you are looking at, the weight ratio to engine is better than ours.

    MM.