1981 CRC Altitude Octane Requirement Program. Open PDF Document Details Document Type Technical Report Publication Date Dec 01, 1981 Accession Number ADA116988 Tags DTIC Thesaurus Topics Alkanes Altitude Automatic Transmissions Automobiles Barometric Pressure Control Systems Elevation Engines Fuel Systems High Altitude Ignition Knocking Plastic Explosives Sea Level Test Facilities Test Methods Vehicles