I used to do it every other oil change, 7000 miles, on my new truck Im hitting it every oil change which is averaging 9000 miles.
On my wifes car I was letting her manage maintenance until I discovered she wasnt getting her tires rotated and she had close to 30000 on the tires. When I bought her new tires they offer free pressure check and service along with rotation so everytime her oil change comes up I nag her to get the rotation done, the shops only a few blocks from the house and she drives by it a few times a week.
Thatll teach women to whine about equal rights, now I got something to nag her about.