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new vortec 5.3 XFE?

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Old 02-15-2009, 07:23 PM
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Default new vortec 5.3 XFE?
so whats the low-down on this engine? what did GM do to it to make it more fuel efficient than the LY5??
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Old 02-15-2009, 07:26 PM
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Google helps answer that.
http://www.pickuptrucks.com/html/new...l-economy.html

Tuning goes a long way
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Old 02-15-2009, 07:26 PM
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it looks like it has something to do with being a hybrid maybe??
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Old 02-15-2009, 07:27 PM
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It's not a hybrid
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Old 02-15-2009, 07:32 PM
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ahh......thanks for the link. So what I'm gathering is that the new pickups that are equipped with the 6 speed automatic trans get the "XFE" designation??
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Old 02-15-2009, 07:32 PM
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Your looking at weight reduction with the aluminum block. VVT, Tuning, less drag and smaller gear ratio all combined.
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Old 02-15-2009, 08:36 PM
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3.08 gear ratio that truck sucks ***** lol XFE Xtra *** Edition

i wouldent buy that truck with that gay gear
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Old 02-15-2009, 08:42 PM
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Dido.
Get the regular or the 6.0 and a tune. I bet that thing is a DOG off the line
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Old 02-15-2009, 09:23 PM
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does the xfe stand for Xtra Fuel Efficient

i hope they could have figured out something better
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Old 02-15-2009, 09:25 PM
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it do.
It was a toss up between that and EMB
Even More Better
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