I think they recommend every 50k under normal driving conditions.Patrick96LT4 said:I bought my car with 11k miles... it would appear that my K&N has gone another 25,000 miles without being cleaned.
It doesn't look dirty... ? How often should I clean the critter?
I can't tell if it's dirty. I need to compare it to a new one!vettn94 said:How about when it's dirty