Every San Diego car owner who has taken their car in for an oil change has been told that their engine air filter's dirty.
Here's what goes into the determination of when to change the filter: First, your sedan owner's manual will have a recommendation of when to change the filter. Second, a visual inspection by your San Diego technician may determine that your filter it is visibly dirty and needs to be changed.
So between your owner's manual and your San Diego technician's inspection there's really no guesswork involved.
Now, most air filters purchased in Tierrasanta, Kearny Mesa, or Mission Valley don't cost a lot to replace. It's just that CA people hate getting caught with an unexpected expense. On the plus side, though, changing a dirty air filter at Convoy Auto Repair can often save enough on gas to pay for itself before your next oil change in San Diego.
Think about a dirty furnace filter in your Kearny Mesa home. When it's all clogged up, enough clean air can't get through. In your sedan, that means that your engine can't get as much air as it needs to burn the fuel efficiently. So it makes do with less air and has to use more expensive CA gas to move your vehicle around San Diego roads.
Your sedan actually needs about 12,000 gallons of air for every gallon of gas it burns. Engine air filters don't cost much in San Diego at Convoy Auto Repair. When it's time to change yours, just get it done. You'll save buy less expensive San Diego fuel, have better performance and protect your engine.