I did the the first service on my Mule SX LE FC FI yesterday at 52 hours, and the engine oil was grey/brown, thin, and smelled of gas. The oil level was right on the mark before starting the service. Anyone else experienced this? Should i make an appointment with the dealer (3 hrs away), or keep an eye on it. Since it is fuel injected, it shouldn't be running rich enough to wash down the cylinder walls - I wouldn't think, anyway. It is used lightly, and for very short trips - mostly to the barn and back (about 200' from the house, down a hill), and then another 100' feet or so to dump hay and waste. Very disappointing with a new vehicle!