Running a diesel fuel. And then, in an oil change we only have to change seven quarts of oil versus 18 to 29 with some of our buses. The Cedar Rapids School district is expecting to receive its new propane fueled buses in time for next school year. Up theheoad at linnmar drivers started using their four new propane buses this school year. We are projecting about 3,200 a year of savings per bus, and thats not just in fuel but in reoccurring maintenance costs. Hose who sell the buses say theres Something Else thats grabbing the interest of iowa School Districts. Propane buses dont have problems in the bitter cold, like diesel engines. With a diesel bus, number one you are going to hope that you have it plugged in, number two you are going to hope you have your fuel properly blended so you dont have a gelling issue, which will leave that sitting basically along the road, which then involves a tow truck. Were told that propane buses can start up even when its 40 below earlier this temperat