The Driveability Task Force of the Volatility Section of Subcommittee A will be investigating the feasibility of a Phase 2 Summer Driveability project. (Phase 1 of this work was completed on Winter gasoline and studied the impact of relaxed T50 and TVL20 on vehicle driveability performance, issued as CRC Report No. 658.) This Phase 2 will investigate potential vehicle driveability performance with minimum T50 of the fuels ranging from 170F to 140F and ethanol content from 0% to 15% are being considered with possible management of the program by CRC. A ballot to relax TVL20 for Classes 4 and 5 fuels passed ASTM D2 Ballot in December 2011. A ballot to further relax T50 is now being moved through Subcommittee A.
Keywordsalcohol; antiknock index; automotive fuel; automotive gasoline; automotive spark-ignition engine fuel; copper strip corrosion; corrosion; distillation; driveability; Driveability Index; EPA regulations; ethanol; ether; fuel; gasoline; gasoline-alcohol blend; gasoline-ethanol blend; gasoline-ether blend; gasoline-oxygenate blend; induction period; lead; leaded fuel; methanol; MTBE; octane number; octane requirement; oxidation stability; oxygenate; oxygenate detection; phase separation; phosphorous; solvent-washed gum; sulfur; TV/L = 20; unleaded fuel; vapor-liquid ratio; vapor lock; vapor pressure; volatility; water tolerance; Alcohol content; Petroleum products--specifications; Automotive engine fuels/oils--specifications;
Draft Under Development