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4th Gen Ram Tech2009 - 2018 Rams and the 2019 Ram Classic: This section is for TECHNICAL discussions only, that involve the 2009 - 2018 Rams and the 2019 Ram Classic. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Hemi 5.7 3.92. Will gas mileage improve after break in period? If so how much can I expect? Is there a proper way to break the motor in? Thanks for your help. That 3.92 has some *****, definitely throws you back in the seat.
Depends where your driving your vehicle...if your up north the gas stations probably started putting winter fuel in and you gas Milage will drop a bit...it won't improve to much, remember its a truck..Dodge say 20mpg, that's Hwy no wind half a tank doing 60 MPH...in the city you'll watch your MPGs drop. But I bought a truck not a Prius ...
Location: North Aurora, Il - 40 miles west of Chicago
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Good is relative - anything over 20MPG in a full size truck, is good mileage - even on the road. Expect 14-16 in town driving. I regularly get 21-24 on the road, and about 16-17 pulling my 2000 pound boat.
I have a regular cab 2010 hemi w/ 3.92. The EVIC mileage I get is 13/17 and I have on/off road tires. I have 5900 miles, and the mileage I get has been the same as day one.
Location: North Aurora, Il - 40 miles west of Chicago
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I can't believe those that say nothing improved! MHO
I could feel it get more responsive, get more loose and willing to rev, and yes - mileage did improve! Not a huge change, but change nonetheless. Even on paper