Mpg
Postmaster
Joined: Dec 2008
Posts: 3,940
Likes: 8
From: Southern Oregon Coast
The EPA rated that truck to get 11mpg city; 16 mpg highway (13 mpg combined) - I'd say that if you're getting 15, you're doing pretty good...
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3 factors to consider: The size of the truck; the 4WD; and the driving style. It's a big, heavy truck plus, the added weight and drag from the 4WD components will bring the mileage down a bit. How the truck is driven can also have an impact.
Compare Side-by-Side
3 factors to consider: The size of the truck; the 4WD; and the driving style. It's a big, heavy truck plus, the added weight and drag from the 4WD components will bring the mileage down a bit. How the truck is driven can also have an impact.
Post Fiend
Joined: Jun 2001
Posts: 5,228
Likes: 5
From: Running Springs CA
Agreed. There is no miracle oil that is going to change basic physics. The only advantage your motor oil has is starting and warmup. That truck is heavy and has the aerodynamics of a brick. Congratulate yourself for getting 15.
The only things I can suggest, that may only make a minor difference, air up the tires to 40psi or more and change the rear differential oil to 75W-90 synthetic, if 80w-90 or 75W-140 is in there now.
Dont even think about changing the stock airbox/air filter. K&N and the like contaminate the MAF sensor with oil and dirt, causing fuel injection problems. If you are driving with wide open throttle that would see any air restriction from the stock setup, your driving style would be the real cause of low gas mileage.
The only things I can suggest, that may only make a minor difference, air up the tires to 40psi or more and change the rear differential oil to 75W-90 synthetic, if 80w-90 or 75W-140 is in there now.
Dont even think about changing the stock airbox/air filter. K&N and the like contaminate the MAF sensor with oil and dirt, causing fuel injection problems. If you are driving with wide open throttle that would see any air restriction from the stock setup, your driving style would be the real cause of low gas mileage.
Postmaster
Joined: Nov 2006
Posts: 4,517
Likes: 3
From: SE Wyoming
Electric fans with 2 piece underdrive pulley set are the only thing I can think of that may get you a bit more but 15 is damn good. I couldn't get 15 with my truck until I did those and added a tonneau cover. I also only have 3.55 gears so you are doing really well.
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