They've got a confused. I should have used it in my first post.
I was a 13B for years (after doing a few as an 11H). I worked with some 88Ms, but had never heard of an 88FC. I did a brief stint impersonating a 31E, which we called a 31FA for accuracy's sake. But that was just in the Army.
I drive an 05BP (Subaru Wagon) and my wife has an 011RT (Dodge minivan). I deal with vehicle and engine codes all day long, but your car's codes were too close to MOS designations for me to think they were car codes.
