Summary: Propose addition of E15 fuel, alongside E85 fuel, and additional labelling or coloring to help users differentiate them, in order to prevent confusion and engine damage.

Background:

Waze now allows E85 (AKA FlexFuel, AKA yellow-pump) as a gas preference/filter, however, E15 (AKA 88 octane, 85% gasoline-15% ethanol, blue-pump) is not currently available as a preference/filter.

Unfortunately, since E15 is 85% gasoline, users are erroneously reporting gasoline prices for E15 in the field for E85.

This is confusing at best, harmful at worst. Users whose vehicles are compatible with E15 fuel may become accustomed to seeing "E85" representing E15. When they travel to an unfamiliar area, they may continue using the E85 filter to look for E15 fuel, without realizing that in some areas, E85 truly means the yellow-pump "FlexFuel". Their vehicles may be compatible with the blue-pump E15 fuel, but not the yellow-pump E85.

As a result of the missing E15 filter, it is possible that they erroneously fill their tank with E85 fuel, resulting in engine damage.

This is of increasing importance as gas prices have increased drastically, and E15 and E85 are both cheaper options that users may seek out, putting them at risk for making an expensive mistake which may ultimately also generate bad publicity for Waze.

Proposals:

Add selectable E15 entry field for gas stations, as well as addition of E15 to the list of preferred fuel types and filters.

Label E15 as "E15 (88 octane)" or "E15 (Regular 88)", and rename E85 as "E85 (FlexFuel)"

Add a borders, background color, or text color to differentiate these fields across the board. E15 can be blue, E85 can be yellow.

Consider adding a warning when a user selects E85 or E15 as a preferred fuel type or filter.