[RayChez1]

1600 miles is no miles on that oil. I have the Cat engine and it says to change the oil every 16K miles or once a year if it has less miles. But if I was you and it actually has only 1600 mile I would not worry about it. Just check the oil level. But if it makes you feel better change the oil and filter out yourself. It is fairly easy to change the oil and filter on those engines and the genset is even easier. Lately I have being changing mine once a year because I have not gone on any real long trips. I just go to WalMart and buy oil for diesel engines and change it. I don't think the dealer would want to change the oil with just 1600 miles. JMHO