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Old 11-17-2012, 06:06 PM
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dunderhi dunderhi is online now
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Location: MD
 
Join Date: Dec 2006
Posts: 5,797
Mein Auto: '13 X5M, 650xi
I consistently get 2 mpgs better fuel economy from diesel sold by Highs Dairy Markets (Citgo & Shell gas) versus any other diesel station in my area including Shell stations owned by different chains. I always assumed it was a difference in Cetane, but I'm open to hear a different explanation.
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2013 X5M ........ 2013 650xi ...... 2011 550xi (ret) 2011 335d (ret)
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