Wife and I purchased our 2016 Jeep JKU in February and immediately switched from the stock 16" steel wheels to stock 17" alloys. We have 3.21 gears as this is her daily driver since she works closer to home. The question I have, is the Jeep programmed from the factory to accommodate the 16" wheels and 225 tires? Our average MPG since ownership has been 15-16mpg with the 17" alloys and Wrangler SRA tires. Her drive to work is about 23 miles open roads, light traffic and 70mph limit. Just trying to see if maybe a Procal or other programmer would help with the difference in tire size? BTW, we have almost 3,000 miles on the Jeep. Thanks in advance for any and all help!
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