Ram 3500 MPG test

Cummins12V98 wrote:

4x4ord wrote:
Ford would have been running about 1670 rpm and Ram about 1900. I'm going to need more convincing before I"m going to believe that the Ford gets that much better fuel economy than Ram just like I'm needing more convincing that the Ram exhaust brake is that much stronger than Ford's.

My tachometer says 2,000rpm at 70 so the Ford running 1,670 would for sure get better mileage. That much difference with the wind who knows, I doubt it.


Seriously these guys need to learn how to fill up a truck!!! To be "PRECISE" they could have a 5 gallon container filled and mark the tank where the 5 gallons comes to, fill truck tank with nozzle til it shuts off. Fill to the top with the 5. Empty the 5 into the chase truck or have a second tank empty and then fill it with 5g.

Now take the run come back to the same pump so the truck is setting the same. Have a container with exactly 5 gallons in it. Now fill the tank til it clicks, now pour from the 5 into the truck til it's FULL. Now fill the 5 that you just used back to it's full line using the same pump to determine exactly how much fuel is used.

I know this sounds complicated but in reality it is not and would give EXACT amount of fuel used.

Do the same with the DEF, it's simply stupid trying to get an accurate number with the DEF pumps.

In a diesel pickup when towing, the lower RPM doesn't mean better fuel mileage. My 08 Duramax would get much lower mpg at 1,700 rpms in 6th over 2,000 rpms in 5th when towing. Reason is at 1,700 it is lugging and dumping fuel to keep up. EGTs much higher as well at 1,700 rpms. (Assuming flat ground).

I do agree their tests are lame. They are also using the fast fill pumps which are not consistent and subject to the amount of foaming you get. I also complain that they need to get a banks idash to check to see if they are in Regen. They also need to do 3-4 runs in each to account for variations in the test.

I don't think the ram gets that much worse MPG as I don't believe the Ford gets that much better. All three used a ton of def.

They also should run miles and miles to see how often it regens, but I find they are too lazy to do any of those changes. Hell they can't even remember to bring their DB meter half the trips.