Originally Posted by
FinUp
Now that I have changed my engine air filters... after how many miles do they need to be changed driving a mix of city and highway miles?
Basically, when they look dirty. Make it a part of your oil change routine to check the filters,
OR buy a set of K&N's and refurb them yourself ......
( usually around 14-15k miles )
IE, every other 'service interval' which is 7000 miles.
The air filter is on the 'B" service interval, you alternate 'A' & 'B' intervals ......