• Independent of the Maintenance Minder information, replace the brake fluid every 3 years.
• Inspect idle speed every 160,000 miles
• Adjust the valves during services A, B, 1, 2, or 3 if they are noisy
Everything else is basically done from the maintenance minder. It calculates everything based on driving conditions. In my driving experience, I'd usually end up running around 7000-7500 miles or so between oil changes following the 15% oil meter suggested drain interval. It calculates cold starts, rpms, idling etc to determine oil useage.
So if you have a bunch of long highway miles it'll be different than driving stop and go in the city. Everyone is going to do whatever they feel comfortable with, but I see no issue in following the engineers suggestions. If their suggested drain intervals were negative, it'd hurt them with repairs and even resale value on the used market if they get a bad reputation.