Because of the responses to the SAE study showing air filter life can easily approach 100k miles and the fact that saying a filter is "dirty" at 10k miles is very subjective, I wanted to see what people really think dirty is?
Would you change this filter? Is it dirty?
I did some testing and I will reveal the results afterwards.
Would you change this filter? Is it dirty?
I did some testing and I will reveal the results afterwards.