After some indirect and also direct bad experiences with several Honda dealers (except for the local parts department who were fantastic) it would seem that Mazda Main Dealers are no better. This car apparently had a major server done three weeks ago just before I bought it. £900+ of work. I changed the pollen filter yesterday because it was so bad I could barely see any filter. Here's the air filter which I changed tonight: Needless to say I don't trust the oil or the oil filter now and already have parts ready for a service. I'll also be changing the rear diff oil. It's absolute madness. The pollen filter took about 60 seconds and the air filter took about 45 seconds (it's four clips). Both parts can be had for under a tenner. It's just another reason why I won't let dealers and many garages anywhere near my car unless I absolutely have to and where I can hopefully see the results visually.