Automotive ethanol fuel (E50-E85 and E20-E25)
Scope:
This National Standard of Canada applies to two types of automotive fuel: type 1, 50% to 85% by volume denatured fuel ethanol with gasoline and type 2, 20% to 25% by volume denatured fuel ethanol with gasoline. Both types are for use in flexible-fuel vehicles over a wide range of climatic conditions.
Users of this standard are advised to consult the owner’s manual and/or the original equipment manufacturer regarding the suitability of the specific fuel blend prior to its use.
Fuel produced to this standard is not for use in conventional vehicles designed to operate on gasoline containing up to 10% or 15% by volume ethanol. Precautions for the use of automotive ethanol fuel type 1 and type 2 are also identified .
Type 1 (E50–E85) varies from 85% to as low as 50% by volume denatured fuel ethanol under respectively warm and cold seasonal conditions, and also by geographic location. The proportion of gasoline is increased for use at lower temperatures to increase volatility to improve flexible-fuel vehicle (FFV) startability and driveability, and also to reduce the risk associated with flammable ullage spaces.
For type 2 (E20-E25), the composition in this standard uses gasoline that complies with CAN/CGSB-3.5 or BOB suitable for CAN/CGSB-3.511 to meet the seasonal volatility requirements that ensure adequate startability, driveability and to reduce the risk associated with flammable ullage spaces (see Tables 2A to 2H).
Project need:
Technical update of standard is proposed.
Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.
Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.