2024 Chevy HD DRW and SRW Fuel Economy Test

[FishOnOne]

The Chevy did good for a 3500 DRW truck. At 17.7mpg Chevy made a good improvement.

Link

The Chevy 2500 made 20mpg

Link

[Grit_dog]

I’m still waiting to hear how to keep my shoes dry and not stinky like diesel when “topping off” a vehicle with a capless fuel filler. I guess maybe you could block the fuel island for an extra 5 min tinkling in the last gallon or 2 and only get a small drip spilled on the concrete?

Moreso, I’m just glad there’s enough meaningful things in my life to do, to not obsess about the theoretical accuracy of my, or anyone else’s, fuel mileage to the 1/10th of 1 mpg….

Although to be fair some folks can’t comprehend the order of magnitude, or lack thereof, of things they obsess over. Or maybe more accurately, publish those obsessions…

[FishOnOne]

Cummins12V98 wrote:

FishOnOne wrote:

Cummins12V98 wrote:

FishOnOne wrote:

Cummins12V98 wrote:
This BS of fill til it clicks and wait then same is a joke. It takes a bit but you can fill to the top if you want.

I think this method is legit as long as you do it the same way every time.

Haven't you noticed different flows if someone else is filling on your island while you are also?

So you mean to tell me that another pump on the same island pumping fuel at two different locations is why these two Duramax trucks yielded impressive fuel economy results?

WOW, put words into my mouth!!! I never said a word about the results just the method of fueling. Remember reading and comprehension go together. :B

I gave you an example with a question of why it can't be accurate but you chose not to address my statement/question.

But yet your trying to disqualify these fuel economy tests from two different sources. So based on the fueling error you're claiming how much did it affect the reported fuel economy results?

IMO the error is in the noise.

[Cummins12V98]

FishOnOne wrote:

Cummins12V98 wrote:

FishOnOne wrote:

Cummins12V98 wrote:
This BS of fill til it clicks and wait then same is a joke. It takes a bit but you can fill to the top if you want.

I think this method is legit as long as you do it the same way every time.

Haven't you noticed different flows if someone else is filling on your island while you are also?

So you mean to tell me that another pump on the same island pumping fuel at two different locations is why these two Duramax trucks yielded impressive fuel economy results?

WOW, put words into my mouth!!! I never said a word about the results just the method of fueling. Remember reading and comprehension go together. :B

I gave you an example with a question of why it can't be accurate but you chose not to address my statement/question.

[FishOnOne]

Cummins12V98 wrote:

FishOnOne wrote:

Cummins12V98 wrote:
This BS of fill til it clicks and wait then same is a joke. It takes a bit but you can fill to the top if you want.

I think this method is legit as long as you do it the same way every time.

Haven't you noticed different flows if someone else is filling on your island while you are also?

So you mean to tell me that another pump on the same island pumping fuel at two different locations is why these two Duramax trucks yielded impressive fuel economy results?

[Cummins12V98]

FishOnOne wrote:

Cummins12V98 wrote:
This BS of fill til it clicks and wait then same is a joke. It takes a bit but you can fill to the top if you want.

I think this method is legit as long as you do it the same way every time.

Haven't you noticed different flows if someone else is filling on your island while you are also?

[Grit_dog]

FishOnOne wrote:

Cummins12V98 wrote:
This BS of fill til it clicks and wait then same is a joke. It takes a bit but you can fill to the top if you want.

I think this method is legit as long as you do it the same way every time.

But you don’t get the added advantage of “carefully” filling it to the brim with a couple few clicks and the nice splash of diesel that runs out the water drain between the 2 flappy deals in the fuel filler….
Bonus points if it splashed on your shoes or toes….
Not sure how to account for the volume loss there either…lol

[FishOnOne]

Cummins12V98 wrote:
This BS of fill til it clicks and wait then same is a joke. It takes a bit but you can fill to the top if you want.

I think this method is legit as long as you do it the same way every time.

[Grit_dog]

Cummins12V98 wrote:
This BS of fill til it clicks and wait then same is a joke. It takes a bit but you can fill to the top if you want.

You literally have a truck that will make a mess if you try doing that, just like all other capless fuel fillers I’ve seen…. And what is the difference really? If it’s a similar flow rate pump it’s gonna foam and click off about the same (talking about diesels) yes the click off is more accurate with gas since it doesn’t foam up.

[Cummins12V98]

This BS of fill til it clicks and wait then same is a joke. It takes a bit but you can fill to the top if you want.

[FishOnOne]

4x4ord wrote:
The trouble with mpg tests is that they don’t take into account cleaning the DPF. To be accurate the test should start with a clean DPF and end the same way.

Your correct... I would say the best way to check fuel economy on a diesel is to run it from a clean DPF (after regen) until the completion of a second regen.

[4x4ord]

The trouble with mpg tests is that they don’t take into account cleaning the DPF. To be accurate the test should start with a clean DPF and end the same way.