DIC: FUEL RANGE 503 miles

[donjetman]

And the last 30 miles before this fillup was uphill, from 8,000'asl to 10,000'asl. Don't be jealous

 

[GranPrix]

Same thing happened to my '17 after a long road trip. As soon as I got back home and filled her up the range was at 518! The second tank after that was 480ish and ever since it's gone back to normal.

 

[swathdiver]

And the last 30 miles before this fillup was uphill, from 8,000'asl to 10,000'asl. Don't be jealous View attachment 378644

I'll raise you 4 miles! LOL

 

[donjetman]

I'm heading downhill next, from 10,000'asl to 8,000'asl in 30 miles, so my 503 is gonna grow

 

[intheburbs]

Last time I trusted the fuel range reading, I ran out of gas while it was showing 84 miles. Now, granted, I had just driven 583 miles without stopping, but still, that's a big error.

 

[LordWayback]

Last time I trusted the fuel range reading, I ran out of gas while it was showing 84 miles. Now, granted, I had just driven 583 miles without stopping, but still, that's a big error.

Yep! This 2012 F550 2wd assumes 350+ miles on a full tank but if you look at the dash once it catches up to half a tank the truck realizes it only gets 7 mpg> and gets like 200 to the tank. Cruise control 600 pound load 65 mph all freeway for 45 miles each way. Edit: this truck is supposed to reach 12 mpg but it has trans issues and a valve tick but even 12 mpg unloaded freeway best I’ve done is 7.3 it has a damn drinking problem!

 

[Sparksalot]

 

[donjetman]

Mine works great. This is the only vehicle I ever owned that had this feature.

All the aircraft I flew for a living had DIC or fuel totalizers since the 1980s.

 

[Joseph Garcia]

And the last 30 miles before this fillup was uphill, from 8,000'asl to 10,000'asl. Don't be jealous View attachment 378644

I think that you added a 2nd gas tank to your truck.

 

[swathdiver]

View attachment 378666

That's what mine showed me after my wife drove it this morning! LOL

Many times mine has said the range was 95 miles or so and then got onto the highway and doubled or tripled that distance.

So who has a pic greater than 507 miles?

 

[donjetman]

This morning 30 miles into my drive. Going downhill from Leadville, CO (10,000'asl)

 

[swathdiver]

I'll see your 518 and raise you 25! LOL

 

[donjetman]

I'll see your 518 and raise you 25! LOL

View attachment 378864

What is your fuel capacity? My Yukon Denali has 25.5 gal I think? Our previous 02 Surburban had 33 gal capacity? and a 5.3 giving it greater range.

I could drive the Surburban back to TX with only 1 fuel stop. Our Denali requires 2 stops due to capacity.

 

[Geotrash]

What is your fuel capacity? My Yukon Denali has 25.5 gal I think? Our previous 02 Surburban had 33 gal capacity? and a 5.3 giving it greater range.

I could drive the Surburban back to TX with only 1 fuel stop. Our Denali requires 2 stops due to capacity.

If it's an XL, you should have a 31 gallon tank.

 

[swathdiver]

What is your fuel capacity? My Yukon Denali has 25.5 gal I think? Our previous 02 Surburban had 33 gal capacity? and a 5.3 giving it greater range.

I could drive the Surburban back to TX with only 1 fuel stop. Our Denali requires 2 stops due to capacity.

Just over 31 gallons. Just the other day we broke our long range record and went 515 miles using 27.2 gallons of fuel with an average speed for that tank of 55.4 mph. Don't remember if I took a picture of the dash after refueling. You're doing great efficiency wise with a 6.2 motor.