1.1 This specification covers a fuel blend, nominally 70 to 85 volume % methanol and 30 to 14 volume % hydrocarbons for use in ground vehicles with automotive spark-ignition engines. discusses the significance of the properties specified. presents the current status in the development of a luminosity test procedure for M70-M85.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.