This same exact thing happened to me. Against my better judgement I let the dealership do the 10k oil change because it was free. (I had done it already at 5k) When I did it today at 15k I realized the shorter filter had been installed. I knew I shouldn't have let them change it .. never ever...
Same EXACT thing happened to me. I changed my own oil at 5k.. then I let them do the 10k oil change because it was free. I KNEW I shouldn't have. I do all my own maintenence because I don't trust the "mechanics" at the dealership. So today I did the 15k oil change.. first off I needed an impact...