This can be killing your gas mileage
The Bad
Let’s say this 2015 VW Jetta 1.8T 4 cylinder engine is the average car.
This car has gas tank size of 14.5 US Gallons. With an mpg of 25 City and 37 Highway, let’s say the average is 31.
So for every tank can take you 449.5 miles.
Generally, for every gallon of fuel/gasoline that your car consumes, it also consumes about 10,000 gallons of air.
Therefore after a full tank you are consuming
The Good
Good News! Changing your engine’s air filter can be one of the easiest DIY maintenance items that can be done!
Timing
Generally stick to the manufacturers recommendation here, but I tend to manually check it from time to time.
Since this is a cheap repair, even cheaper now that you do it yourself, I tend to change the panel filter once or twice a year.
(before winter or before summer)
