I'm a believer in flushing the brake fluid, maybe every two years, especially in humid climates.
The brake fluid is made to absorb moisture. Moisture will get into the system, and if the fluid doesn't absorb the water, it'll pool in the low spots--the calipers--and rust. Brake fluid that contains moisture has two problems...it'll eventually cause corrosion in the calipers, and the biggie is that it will boil at a relatively low temperature under the heat of emergency braking. If the brake fluid boils your pedal goes to the floor and you have no brakes. This happened to a friend towing a horse trailer down Mt. Adams. When he finally got safely stopped he took several deep breaths, looked his brake system over and saw no problems. When he restarted his drive his brakes worked OK. His mechanic told him about boiling brake fluid. There was another case nearby where a car in a state park was going down a very steep incline, lost the brakes, crashed, and killed a child. The police investigation, as noted in the newspaper, determined the cause to be boiling brake fluid. In both these cases the drivers should have done two things differently--had their brake fluid flushed periodically and shifted to low gear for the steep downhill grade.
So...anyone competent can flush the brake fluid. I do it on our three vehicles. Check prices and don't let yourself be upsold into more services. The fuel system thing probably doesn't need to be done at all unless you notice the engine running rough. I always wipe out my throttle body at 30,000 miles, it is always dirty, and I never notice a difference in how the engine runs.
tire rotation, alignment, transmission service, coolant service, engine cleanerTire rotation--probably. Alignment--only if it needed it, if you saw accelerated wear or the car pulled to one side. Transmission service--good idea to drain and renew part of the fluid but probably not needed at 30k. Coolant service--5 year item. Engine cleaner--scam.
