I was in need to get an oil change for my car so I checked on Yelp for nearby recommendations. I decided to go to Quality Tune up in Fremont. It was about 1/2 hr before closing time & Met Ken the owner. I was very pleased with him and his crew. He suggested along w/ the synthetic oil & filter replacement that I have an additive added to flush out the oil to help keep it clean, replace my air filter. This will give me better gas mileage and will run a lot smoother. Since I had over 215K miles on it already, I took his advice. After driving my car throughout the day, I did notice how my car ran. It sounded much smoother. Thanks for watching out for your customers and giving excellent customer service. I highly recommend this location. Thx again Ken & Crew!