When do you NEED to modulate the parking brake? You don't need to do that for parking and in an emergency you can just use full braking anyway. They weren't designed to help you drift around a turn o… (View Post)

Engines today have to run rich at higher RPM when cold to kickstart the emissions systems. If you only drive a few miles at a time your mileage will be terrible - even worse with a hybrid. (View Post)

They actually measure the burned hydrocarbons from the exhaust which is far more accurate about how much fuel is being combusted. Each gallon of fuel produces a specific amount of exhaust waste. (View Post)

If the technology existed and was affordable, it would be on the market already. No mfr would hold back something that would bring them huge sales volumes. (View Post)