[ActionMaxon]

At my shop, Rotate is .5, air filter .3, brake fluid flush 1.0, oil change .5, so that's 2.3. We wouldn't charge for general look over type stuff.

Inspect cooling system- verify fluid level and check freeze protection (this is done for every customer as a courtesy at my place,)

Inspect fuel lines- visual inspection of connections, particularly checking at fuel injectors for leaks. At 30K you probably wouldn't see this but also checking for cracks in hoses, and condition of gas cap seal(looking for cracks that could lead to evap codes).

Inspect belt, check for cracks, use gauge to determine wear if appears worn but no cracks. Verify tension.

Inspect trans fluid- verify level, smell it to check for burnt smell, check for leaks.

Customers expect technicians to catch things before they become a problem, and it is their responsibility to do so. Customer doesn't have to approve anything they don't want to, but it needs to be looked at for general maintenance and safety needs.

Edit: I looked up Mitchell book time for official 30K service book time and it lists 2.4 hours.