Yes, if you ever get into boost, you will get fewer miles per gallon. It take gas to make power.
no
No
No, I don't think they would negatively effect your gas milage. You just need to make sure that you keep them with plenty of air. That is what would negatively effect your gas mileage.
yes
If it is malfunctioning it can affect fuel mileage.
Roof racks themselves have a negligible effect on gas mileage.
Yes.Yes.
Should have no effect
Turbo and superchargers are examples of heat turbines used to compress and pressurize intake air charges for higher power outputs. A turbocharger uses the heat energy from exhaust gases to drive its turbine. In comparison a supercharger uses the mechanical energy of the motor through the drive belt system to run its turbine. A supercharger produces parasitic power and fuel efficiency losses through this set-up. For these reasons a turbocharger has higher efficiency.
A "Turbocharger" is driven by exhaust gas. A "Supercharger" is driven mechanically by the engine.
Only a minute amount.
You will get lower gas mileage. The tcc solenoid locks up the transmission to get better gas mileage at higher speeds. I suppose it will wear the transmission slightly faster as well, but the main effect is lower gas mileage.