Engine/Evaporative Emission (EVAP) System Information: Notes

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator L. However, it is still accessible from the selected car via links, so may be relevant.

Manufacturers must use a standardized system for identifying their individual engine families. The system described below was developed by the Environmental Protection Agency (EPA) in 1991 to meet new regulatory requirements for 1994 and later model years.

The engine family group and evaporative family name consist of 12 characters each.

Both the engine family group and the evaporative family name are listed in the box on the emission decal in the area marked as engine evaporative family information. The first line contains engine size and the 12- character engine family group. The second line contains the 12-character evaporative family name information. Both the engine family group and the evaporative family name are specific to the vehicle. Refer to the Engine Family Group and the Evaporative Family Name worksheet inFigure and Figure for decoding information.