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Old February 14th, 2017, 04:58   #35
oilhammer
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Join Date: Dec 2001
Location: St Louis
Fuel Economy: fantastic
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Probably why so many of these smaller GDI engines have such sooty tailpipes. The tailpipe of my 21 year old F150 with over 100k miles is still clean, and that is with an engine that was designed sometime back in the 1960s and was hardly a cutting edge one at that. While my dad's 2015 F150, with its impressively powerful little 2.7L Nano V6 already is getting a black tailpipe and it has not even gotten to its second service interval.

Unloaded, though, that new truck does get better fuel economy. Not sure how it does loaded though, and chances are it never will be loaded very much anyway.
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