jnoiles said:

As I stare at the box of a dozen oil filters on the shelf and contemplate my obsessive nature, yes, I am compelled to admit that I change oil often

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I personally think you are pefectly normal! When I had my Neon on the road, I used to go to the Chrysler dealer and buy five oil filters at a time. Changed the oil in that every 6000 miles without fail. Certainly never did the old girl any harm. Rather bizarrely, the genuine oil filters were always cheaper than going into a motor factors and buying an aftermarket one and personally, I always think it's safer buying genuine anyway.

frupi said:

I personally think you are pefectly normal! When I had my Neon on the road, I used to go to the Chrysler dealer and buy five oil filters at a time. Changed the oil in that every 6000 miles without fail. Certainly never did the old girl any harm. Rather bizarrely, the genuine oil filters were always cheaper than going into a motor factors and buying an aftermarket one and personally, I always think it's safer buying genuine anyway.

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Mobile one had an extended synthetic oil that they guarantee for 15000miles but only if you use their special filter that is of course if the oil suited your engine. So there would appear to be a difference in the quality of filters.
http://www.mobiloil.com/usa-english/motoroil/other_products/mobil_1_extended_performance_oil_filters.aspx

loveshandbags said:

Mobile one had an extended synthetic oil that they guarantee for 15000miles but only if you use their special filter that is of course if the oil suited your engine. So there would appear to be a difference in the quality of filters.
http://www.mobiloil.com/usa-english/motoroil/other_products/mobil_1_extended_performance_oil_filters.aspx

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I wasn't aware of this particular oil nor the special filter, I do know though that Mobil oil had been put in my Caddy on my last couple of services costing about £50 for five litres of the stuff. I since found out that General Motors market their own fully synthetic long life oil, Dexos 2, which is approved and is the correct grade for my Caddy engine and it's half the price. I kind of feel a little bit fed up that my dealer would stick in the most expensive oil they have rather than putting in the GM oil. I can only surmise that this is how dealerships make up some of the profits on servicing?

I still haven't asked the Fiat main dealer what oil they intend putting in our 500 at service time. That's a question for next week!