I rarely take offers from door-knockers. However, a few years ago I purchased a $60 card for oil changes and other services from a new startup mechanic. This panned out to be one of the best purchase decisions I ever made. 5- Star not only lived up to all expectations 100%, but I can truely applaud their consistency and loyality to endorse them as "best mechanic" I've had in over 4 decades of auto ownership.