[osprey4]

Quote:

Originally Posted by SoloCamo

Change your air filter?

Wow. Well I suppose a dirty, old air filter does help economy, right?

How does that not qualify as proper maintenance?

And TRB is correct regarding AC and tire pressure.

Quote:

Maintaining your car is important, but a clean air filter isn't going to save you any gas. Modern engines have computer sensors that automatically adjust the fuel-air mixture as an increasingly clogged air filter chokes off the engine's air supply. While engine power will decrease slightly as the air filter becomes clogged, a lack of performance or an increase in fuel consumption will be negligible, Consumer Reports says.