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What's your gas mileage on the 4.3L V6?

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32K views 36 replies 23 participants last post by  Jcdew67  
#6 ·
Just did a manual calculation on the 6.0: 12MPG even.
That's actually an improvement over the 10.5 prior to replacing the intake manifold gaskets.
Pushing 10-ply 33x10.5 tires, 12 MPG not so bad.
 
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