Low Mpg

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creddy

New Member
Joined
Aug 17, 2020
Posts
4
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Location
Phoenix, AZ
Picked up a 2014 ex-Border Patrol EL XL 4x4 with about 75k on the odometer about 2 months ago. Absolutely love it compared to the Silverado it replaced. I initially figured that the low mpg was from city driving (+/-11mpg) but just did a 250mi trip on cruise control at 65 and it only got 12.5. I can live with 16 on the fwy but not even breaking 13?

Where do I start in figuring this out?
 

iimagine

2016 EL XLT
Joined
Aug 13, 2008
Posts
129
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48
Run a bottle of Marvel Mystery Oil through it.

iimagine
 
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