Greetings to all. I just bought a 2014 Silverado High Country. My first foray away from the series of Avalanches I’ve owned since 2002. I noticed that the 5.3L engine HP rating is up to 355, but that it’s 380 if E-85 is used. My question is why is this? Doesn’t E-85 have less BTU’s than gasoline?
Thanks for any light you folks can share on this.
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