One further thing that one of these shops managed to do was change my transmission fluid once. I know they tell you it has to be changed each time you go in there. On one occasion, the moment they told me, I allowed them to do it. Three months afterwards, when I went back to have an oil change, they tried to tell me the transmission fluid was dirty and needed to be changed again. Not surprisingly, that is the last time I went to these bad places. I will no longer go to these quick oil change places and instead have found the best mechanic to work on my car. Surprisingly, individualized individuals who work at the quick oil change places have never had any training in fixing cars. That's why you are better off finding a certified auto mechanic. . firestone oil change coupons Another time, one of them outlets swapped out my transmission fluid. I know they tell you it has to be changed each time you go in there. Once, the moment they told me, I allowed them to do it. Then, when I went back to have my oil changed several months later, they told me I seriously needed to have my transmission fluid changed. Which was the final time I ever visited any of those places.