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Old 03-13-2012, 03:14 AM   #29 (permalink)
EcoModding Apprentice
Join Date: Oct 2009
Location: Portland OR
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Anecdotal reference,,, BMW has been using the twin 4 prong plugs since the 80's...

1995 1.8 318ti gets consistent 34 MPG on the highway with E0 and 30 with E15. at 70...

If it has a motor its worth playing with.......
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