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I came from a 14 st express 5.7 4x4 crew with 3.92:1 and i got 19.5 MPG on the interstate at 76mph. Just got into a 2019 laramie crew 4x4 5.7 etorque 3.21:1 and have been able to barely squeeze out 17 at 70mph. Both were done on cruise on the same stretch of highway. Going to town and back...
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