Jamo-there is both sides to this issue.Too many variables to apply either the 7000 miles figure or the 3000 miles figure.Do to my job,the milage accumulation on my toys is extremely low.Using the 7000 mile mark would mean the
oil wouldn't be getting dumped for a couple of YEARS.That ain't gonna happen.There are too many types(situations)of service to have a blanket number.