oldtreker Posted January 9, 2017 Report Share Posted January 9, 2017 The tips on my tailpipes are black from unburnt fuel. My gas mileage is good and I don't idle the motor before driving but my Nissan doesn't do this and it's a V6. Anyone else notice this. Thanks 2.0 ecoboost Quote Link to comment Share on other sites More sharing options...
akirby Posted January 9, 2017 Report Share Posted January 9, 2017 That's common with Direct Injection engines from all mfrs. 1 Quote Link to comment Share on other sites More sharing options...
gjb89 Posted January 9, 2017 Report Share Posted January 9, 2017 If you get any build up on the chrome use Bar Keepers Friend to get them nice and shiny again. I love the stuff. 2 Quote Link to comment Share on other sites More sharing options...
Blake Willis Ehret Posted February 1, 2017 Report Share Posted February 1, 2017 i have this same issue with my 2012 edge. Both are black as night. Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted February 1, 2017 Report Share Posted February 1, 2017 If you have E85 available, you can try mixing in a gallon or so to a full tank of regular gasoline to help resolve this issue. No more than E15-E18 final mix content. It will definitely take more effort at every fuelup, but if it works, at least you have an option. Always pump in the E85 first, then the regular gasoline, so it all mixes properly in-tank. Quote Link to comment Share on other sites More sharing options...
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