Join Date: Jul 2009
Location: Little Tulsa, AZ
Feedback Score: 0 reviews
They may be calling that a "Non-catalyst" vehicle. What that means is, Ford pays an extra tax to feds in order to sell it without the normal array of emission equipment. My Dad has a non catalyst '87 F250 with a 460; no cat, smog pump, or other associated junk. It also burned "regular leaded fuel" when it was still around.
Values are typical and may vary by 10% depending upon current altitude, accessory operation, engine load, operating time, temperature, and vehicle speed.