I call [censored] as a closed or partially closed throttle will create way more vacuum in the cylinder than a dirty air filter at WOT.
Originally Posted By: Merkava_4
70,000 miles on an air filter?!!?
Seriously?
A lot may depend on the car and driving conditions. I had a Malibu with the 2.4L Twin Cam and the air filter had 62,000 on it when I sold it. It looked roughly like the one pictured above but the restriction gauge hadn't moved it all. It was about two and a half years old.
I was going to run it to 100k and then consider replacing.
Originally Posted By: Merkava_4
70,000 miles on an air filter?!!?
A lot may depend on the car and driving conditions. I had a Malibu with the 2.4L Twin Cam and the air filter had 62,000 on it when I sold it. It looked roughly like the one pictured above but the restriction gauge hadn't moved it all. It was about two and a half years old.
I was going to run it to 100k and then consider replacing.