1. The Mazda 626 needs new filters (oil, petrol and air filters). On the internet I find many different offers from around the 3 Euro to 20 Euro per filter. Can I access the cheaper ones or do it have to be more expensive, better? 2. The same question I still have with brake blocks (back axle) that have to be renewed and have found some for 15 Euro and some for about 30 Euro. I don’t know what I have to pay attention to how 3. The Mazda dealer recommends the following oils for the car: 5W30 or 10W30 or 10W40 I know that for new cars 10W30 should be used and if it is older, like mine now, 10W40. So should I use 10W40 or 5W30? What exactly does the information for oils mean?