Thread: does anyone use the BMW fuel additive that comes in a little blue 3-ounce bottle?
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      01-21-2024, 04:57 PM   #8
Jbrown7403
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Drives: 2016 BMW M4
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I do this every 3000 miles. I used it in early December before a long holiday road-trip. I averaged a bit over 27 mpg for 2500 highway miles. Seems like it is doing something good.
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