hemi 1500 vs 2500 gas mileage
#11
There will be no difference between a 1500 and a 2500 really. What will affect gas mileage is your rear end gearing, and over all what configuration the truck is. 4door vs 2 door ect.
I dont get why people think just because it is a 1500 that its better on gas. Still the same engine. My 04 2500 hemi will actually get better gas mileage then my cousins 05 1500 4.7.
Aaron
I dont get why people think just because it is a 1500 that its better on gas. Still the same engine. My 04 2500 hemi will actually get better gas mileage then my cousins 05 1500 4.7.
Aaron
#12
2500 is about 500lbs heavier and is higher.
Gas mileage (for me) is close (1-2Mpg different) but not the same.
#13
my 04 QCSB 4X2 Hemi gets 13-15 in town and 18-21out on the highway, it just depends on what ya need it for, and if ya really need the extra capacity of a 3/4 ton truck, if not stay with the 1/2 ton, with that said i love the 2500 and would doubt i would go back to a 1500, thats all from the peanut gallery, Brian Lee
#16
There will be no difference between a 1500 and a 2500 really. What will affect gas mileage is your rear end gearing, and over all what configuration the truck is. 4door vs 2 door ect.
I dont get why people think just because it is a 1500 that its better on gas. Still the same engine. My 04 2500 hemi will actually get better gas mileage then my cousins 05 1500 4.7.
Aaron
I dont get why people think just because it is a 1500 that its better on gas. Still the same engine. My 04 2500 hemi will actually get better gas mileage then my cousins 05 1500 4.7.
Aaron
Yes it's still the same engine but more engine load is required to get all that mass moving and maintaining speed. Gearing does help like you said but only so much....the higher rpms on the highway will hurt MPG.
#17
I just took a trip out to Austin Texas this weekend and averaged a whopping 13.5 mpg running 75-80 on I-10. Granted mine is a 1500 megacab 4x4, but you get the idea. I wouldn't buy a 2500 with a hemi if your even modestly concerned with fuel mileage. In addition the cruise has a heck of a time maintaining 75 mph even on the smallish hills west of tallahassee. The truck would lose about 4-5 miles per hour before it decides to drop down 2 gears and then it goes like hell back up to 75. Makes for an entertaining ride in hilly country. I have to agree with the others who said a Hemi is a bit under powered in a 4x4 2500 (which is basically what a 1500 mega cab is).
#18
The truck would lose about 4-5 miles per hour before it decides to drop down 2 gears and then it goes like hell back up to 75. Makes for an entertaining ride in hilly country. I have to agree with the others who said a Hemi is a bit under powered in a 4x4 2500 (which is basically what a 1500 mega cab is).
#19
I tried it once but it seemed like it wanted to stay in 4th gear all the time with the converter unlocked...I was thinking it would make the mileage even worse as the fuel mileage readout dropped 3-4 tenths over 20 miles. But, it did keep it from dropping all the way down to third gear and about 3500 rpm when it wasn't in tow/haul mode. Maybe they should have called it the tow/haul/hilly button.
Last edited by swgachuck; 07-22-2009 at 09:27 PM. Reason: I can spell...kinda
#20
I tried it once but it seemed like it wanted to stay in 4th gear all the time with the converter unlocked...I was thinking it would make the mileage even worse as the fuel mileage readout dropped 3-4 tenths over 20 miles. But, it did keep it from dropping all the way down to third gear and about 3500 rpm when it wasn't in tow/haul mode. Maybe they should have called it the tow/haul/hilly button.
FWIW, O/D is specifically for flat/cruising and fuel economy. Every owner's manual I've seen says to not use it in hilly conditions or under load. "If the truck seems like it's straining, or can't keep speed, you need to take it out of O/D". Also, you weren't dropping mileage because of not using O/D, but because you needed more power for the hills. Not being a smart-alec, but the relationship and effects of load, RPM, speed. gearing and power-band are not always obvious. Your mileage would have dropped more if you let the engine continue to struggle rather than letting it produce the power it needed.
Last edited by Rojhan; 07-23-2009 at 01:26 AM.