| MAKE | MODEL | YEAR(S) | CYL | DESCRIPTION |
| Ford | Taurus | 1988-1990 | 6 | All models with 3.8L engine, Main plus Pre Cat, except California |
| Lincoln | Continental | 1988-1990 | 6 | All models with 3.8L engine, Main plus Pre Cat, except California |
| Mercury | Sable | 1988-1990 | 6 | All models with 3.8L engine, Main plus Pre Cat, except California |