Hi all, Can I just clarify some of the parts required for a service and whether I need geniune as a must or other brands are just as good? - Oil, what grade would you recommend the car has just hit 100k. - Spark Plugs, any paticular brand for this car or requirements? - Filters I presume, air, pollen and fuel? For the air filter are pipercross or K&N Panel fitlers worth it? Thanks all.