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Old 10-20-2013, 02:51 PM   #19 (permalink)
jeff88
Lots of Questions
 
Join Date: Jan 2013
Location: San Jose
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So I removed my crossbars almost 3 weeks ago. At the time I was averaging 20MPG at the pump. The next tank, I got 18.4MPG. WTF it went down!?!? Second tank after it was 18.8, again way down. Ok something is wrong, maybe I need to check some generic maintenance stuff. Didn't get to it. Now at my third fill up after the cross bar delete, I had a whopping 21.5MPG!!!

So now, I'm trying to figure out #1 is there something wrong, or did my driving style change for a couple of tanks (city vs. hwy, aggressive vs. conservative, ambient temp.). And #2 how to determine the increase from the delete. Math would dictate a 1.5MPG increase (21.5 current vs. 20 avg.), but it's tough to say. I'm going to leave them off for another tank or two, then do another 'A' test if I feel it's necessary. (If I continue to get 21ish tanks, I'll probably just go with it.)
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