6.6L Duramax diesel. Runs and drives fantastic. No DEF required. Cold A/C front and rear.  Very good tires.  Wheelchair accessible.  Tilt and cruise.  Lots of power! Transmission shifts, strong and smooth. This is a very clean well kept Shuttle. Has 280K miles. City owned and maintained since new. No leaks, No check engine lights. No rust and no known issues of any kind. Ready for daily use.