1. Arlington Central School District OUR MISSION is to empower all students to be self-directed, lifelong learners, who willingly contribute to their community, and lead passionate, purposeful lives. Autogas (Propane) Bus Purchase Initiative 2016-2017 January 26, 2016

2. This presentation is to discuss a new fuel type for our large (Type C) buses, which will be requested in our yearly bus proposition:  Compare Diesel to Autogas  Safety Comparison  Driver and Rider Experience  Maintenance Consideration  Cost Consideration  Future of Diesel Emission Standards  Next Steps

3. Compare Diesel to Autogas 3 Abundant Supply of Autogas (70% comes from natural gas, which is growing in usage and in abundant supply in the United States.) Greener Fuel than Diesel (80% less smog producing hydrocarbon emissions) Government incentive to purchase autogas ($.36 per gallon incentive) No particulate matter (PM) in a propane bus Autogas buses are not subject to the anti-idling restrictions imposed upon diesel fueled vehicles

4. Safety Comparison 4 Autogas fuel tank is 20 times more puncture resistant Diesel puddles and propane dissipates Propane has the narrowest flammability ratio of any fuel MythBusters attempt to blow up a propane bottle illustrates how difficult it is to ignite propane: myth busted It is not like Hollywood presents Propane only turns into a gas inside the engine just before it is ignited Leaks in the system shut down a propane bus and this technology is not available on diesel (it will spill until found and stopped)

5.  Angled Crash Barriers for Safety Safety Features  Tanks are 20 times more punctured resistant  Located Between the frame rails

6. Safety Features Followed CMVSS 301.1 protocol 4,000 lbs @ 40 MPH Angled side and rear impact 220 PSI tank pressure No leakage or no pressure drop in 30 minute test

7. Driver & Rider Experience 7 Autogas buses are 50% more quiet than a diesel Safer for the driver and riders Riders can talk with each other without the need to shout Driver can more effectively communicate with the riders Riders in the back of the bus can hear the driver Results in a more enjoyable experience for driver and riders Propane is a better environment for students to breath Asthma Heats up faster

8. Maintenance Considerations 8 Autogas lowers preventative maintenance costs compared with diesel Autogas fueled engines require less oil by volume than diesel Autogas fueled engines require fewer filters than diesel Autogas fueled engines do NOT need additional emission fluid Autogas buses require less employee time to prepare them to run Autogas buses carry better warranties (5yr 100,000 mi vs. 5 yr unlimited) Autogas buses require less training without diminishing productivity or efficiency D.O.T. out of service record based on the number of sensors in a diesel bus including the need for more spare vehicles

9. Cost Consideration 9 The purchase price of a diesel bus is $117,000 including $4,000 for the extended warranty The price of an autogas bus is $119,000 This $2,000 difference is more than made up for in fuel cost, lower maintenance requirements, ease of use (training), lack of need to plug in (block heaters) and use of oil (30 quarts vs. 7 quarts per oil change) The differential between the purchase prices has been decreasing and is now almost even and we anticipate this trend to continue as emission standards increase

10. Future of Diesel Emission Standards 10 Years in which higher standards will need to be met 2017, 2020, and 2024 Today diesel motors are not compliant with 2017 standards Propane is compliant with 2017 standards and is releasing new equipment in June of 2016 that will meet the 2020 standards