ok so I was just at one of those quick oil change places, just wanted to have the oil change done. A few minutes after I got there, they came back in and told me I needed a power steering fluid flush, fuel system flush, and cabin air filter. They had the air filter with them. It all would have totaled about $175 if I had it all done, $35 each for oil, filter, fuel system, $70 for power steering. I'm no expert on cars, but it seemed like unnecessary work, I refused everything except the oil. They quickly offered a 10% discount which just made it seem even more like a scam. Are any of the services needed? I can change the air filter myself. Car is a 2003 Honda Civic EX, 37,000 miles.