The Mitchell 1 2018 Emission Application Guide is designed for domestic and import cars, light trucks, vans (diesel engines) and Class 'A' motor homes with gasoline engines, model years 1966-2018. Specific content features include: emission application tables; engine displacement conversion charts; emission control visual inspection procedures; approximately 40 years of domestic and imported basic ignition timing specifications; 1980-2017 maintenance reminder light reset procedures; the latest EPA emission recall bulletins; and more.