1999-01-1505 Interim Results from Alternative Fuel Truck Evaluation Project 1(16) Kevin L. Chandler Paul Norton Nigel Clark 1999-01-1507 In-Use Emissions from Natural Gas Fueled Heavy-Duty Vehicles 17(12) Robert L. McCormick Michael S. Graboski Teresa Alleman Andrew M. Herring Paul Nelson 1999-01-1508 Methylal and Methylal-Diesel Blended Fuels for Use in Compression-Ignition Engines 29(14) Keith D. Vertin James M. Ohi David W. Naegeli Kenneth H. Childress Gary P. Hagen Chris McCarthy Adelbert S. Cheng Robert W. Dibble 1999-01-1509 Effects of a Hybrid Fuel System with Diesel and Premxed DME/Methane Charge on Exhaust Emissions in a Small DI Diesel Engine 43(8) Tatsuhito Kaimai Hideyuki Tsunemoto Hiromi Ishitani 1999-01-1510 Alternative Fuel Vehicle Fleet Buyers Guide 51(12) J. Kevin OConnor 1999-01-1511 What Fuel Economy Improvement Technologies Could Aid the Competitiveness of Light-Duty Natural Gas Vehicles? 63(18) John F. Thomas Robert H. Staunton 1999-01-1512 Emissions from Buses with DDC 6V92 Engines Using Synthetic Diesel Fuel 81(10) Paul Norton Keith Vertin Nigel N. Clark Donald W. Lyons Mridul Gautam Stephen Goguen James Eberhardt 1999-01-1513 Performance and Emissions of an LPG Lean-Burn Engine for Heavy Duty Vehicles 91 Shinichi Goto Daeyup Lee Joseph Shakal Naoya Harayama, Fumitaka Honjyo Hiroki Ueno