3.0L 6-Cylinder DOHC 24V. Only one owner! Come to the experts! FREE OIL CHANGES ON EVERY VEHICLE FOR 3 YEARS. Tired of the same uninteresting drive? Well change up things with this attractive 2005 Mazda Mazda6. Want to save some money? Get the NEW look for the used price on this one owner vehicle. Previous owner purchased it brand new and it still looks like the day it rolled off the lot! The Mazda6 scored the top rating in the IIHS frontal offset test.