when i bought my Crossfire 4+ years ago i purchased a lifetime oil and filter contract with the dealer for about $500 - it entitles me to up to 4 services a year regardless of miles on the car - i only drive it about 3,000 miles a year but i still get 3 oil and filter changes a year and yes they use Mobil1 - so i've had about 12 services so far for my money - based on what i'm reading here about what people are paying, i'd say that i made a great deal and it will only get better as time goes on presumming that the dealer stays in business.