Recently noticed that my mpg below below the tachometer seems to drop a lot more than what it used to when under acceleration. Before I was squeezing an easy 26 mpg out of it around town with little to no effort. Now it seems im having to fight for it. Im wondering if it has anything to do with the vanos seals I did. Perhaps didn't get something tightened up enough now its not working properly. Car was dropped on the rear rotor due to a failed jack about a couple weeks ago. I could just be being paranoid but it just seems like their is something holding it back. Rotor doesn't seem to have been warped or anything of that nature. Just curious if anyone has any thoughts.

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