I have a basically new 2017 Newmar LE with 18,000 miles that has never been serviced since new. Wondering if its time to get service on the 340HP Cummins and Onan Generator? Any ideas on cost for serv...
As other's said, you are way behind the scheduled maintenance-- the first one being 6 months after chassis build Take a look here for the services that should be done at the various intervals.
