Whats your MPG? - Page 5 - JeepForum.com
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post #61 of 62 Old 04-29-2019, 12:18 AM
2017 JK Wrangler 
Join Date: Apr 2019
Location: North Eastern
Posts: 413
This is something we've been keep tabs on since replacing a few of the suspension components and new steering components on our jeep. I'd have to say before 20K miles the jeep was getting around 20 City 24 highway. Since adding these new products to our Wrangler, we're getting in the 17's highway. However a few weeks back I noticed a significant drop in MPG when the front drag link, steering damper, tie rod end links were damaged while driving over a pot hole. Our MPG dropped to 15.2. We've since corrected this with a re-alignment and the MPG is back up to 18.9 This is on the 16'' factory steel wheels & 31'' dueler tires.. prob one of the worse combinations. Most tire charts seem to indicate that with an upgraded tire wheel combination, we'll be able to achieve better MPG in the future. looking to see maybe a 2% increase in the MPG after the new wheels and tires have been mounted. I look forward to reporting back with these results afterward.

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post #62 of 62 Old 07-28-2019, 04:24 PM
2017 JK Wrangler 
Join Date: Apr 2019
Location: North Eastern
Posts: 413
One week of driving on the new 285/75/17 E @35psi have not been so pleasant. I'm under the impression that I'll need to up the tires to 38psi as I've done all of my other jeeps. For some odd reason 38psi tends to ride better with me. Otherwise we've very happy with the Nitto Ridge Grapplers on the reproduction hard rock wheels. Now the challenge of keeping it clean. The other down side to this, even after checking all the specs and comparison pages on going from 245/75/16 to 285/75/17 our fuel economy has dropped slightly. City was 16.9 Highway was 19.8 Now it's City 15.6 Highway 18.7 Again not much of a drop but a drop none the less. But as said several times by other wrangler owners, if you wanted best or better fuel economy, you should have purchased something else. I'll check the tires tomorrow morning with 38psi and report back with any findings or improvements.
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