Driving around with the rear windows open?

[imzjustplayin]

Originally Posted by Jay2TheRescue

This was my car, without the woodgrain siding...

That's cool that you could open the rear window, but that thing is DIRRRTY! According to the EPA with their detailed chart, pre 1968 cars were allowed up to 87 grams per mile of CO, 1977 cars were allowed 15 grams per mile, 1984 cars were allowed 3.4 grams per mile, all these measurements at the half useful life of the vehicle which is 50K miles. But for vehicles at the end of their useful life which is 100-120K miles, max CO allowed from 1994-2003 is 4.2 grams per mile, and from there it drops depending on the BIN you choose.