Opinion on my air filter... Had my car serviced approximately 1500 miles ago, just doing my usual checks on the car oil, fluids, leak checks etc I had a nosey at the air filter. It looked filthy, the bottom white cotton bit was black, and their was a wasp in their. Is this normal for a filter that was changed such a short time ago? Considering that the dealer also decided to put petrol oil in my multi jet, which they had to change for diesel oil, I also wonder whether they bothered with the filter?? strange.