Trying to alter my driving style had a detrimental effect on the mileage, when I tried to accelerate slightly quicker than before in order to test if it was possible to improve my mileage by limiting the time of acceleration by opening the throttle wider for a shorter time then closing it down, this last tank probably had a higher city/hwy ratio with heavier traffic as well. I did try some light neutral costing (with the engine on) as well as trying to stick to 55-60 for periods on the highway, but that was just too slow for traffic (its frustrating because people go far too slowly on the on ramp but then floor it and roar off, rather than accelerating smoothly from the base of the ramp, especially when its a long on ramp.
(By bad I mean it dropped by 3.54 mpg or nearly 1 standard deviation from the previous data point driven under similar weather conditions)
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