20mpg is good from a full size truck. the new cummins with stock motor is getting 20mpg also
Posted: October 4th, 2008, 8:28 am
by teemtrubble
I told you...
Posted: October 4th, 2008, 10:26 am
by AlisoBob
lewisclan wrote:I wish my truck got that kinda mileage
Have Maverick put a tune your truck....
Posted: October 4th, 2008, 10:50 am
by britincali
I dont think mine has EVER got more than 18
Posted: October 4th, 2008, 11:44 am
by AlisoBob
Yea, but you floor it EVERYWHERE....
Posted: October 4th, 2008, 12:34 pm
by britincali
On or off baybee, no inbetween
Posted: October 4th, 2008, 12:45 pm
by teemtrubble
britincali wrote:On or off baybee, no inbetween
Tox said the same thing!
Posted: October 4th, 2008, 12:46 pm
by britincali
I tought her well
Posted: October 4th, 2008, 1:24 pm
by teemtrubble
britincali wrote:I tought her well
She didn't say that....
Posted: October 4th, 2008, 3:58 pm
by MICK
I'm not real familiar with diesels...but is 20mpg really good? I thought they got better mileage than that running such low rpm. My truck gets 20 mpg running 2200rpm @ 70 mph. And my truck is also 2WD...I know it's lifted and shit too Wind resistance is a bitch for sure. Doing just five more MPH on the freeway costs me 2-3 mpg. 70mph is definately optimum cruising speed for my truck. Bob what's your Duramax turn at freeway speeds? 1200-1500?
Oh duh I just looked at your pic again. Now I'm thinking, how in the hell does your truck turn more rpm at lower speeds than my truck You must have some really low tow / haul gears in that bad boy
Posted: October 4th, 2008, 4:01 pm
by teemtrubble
2000
Posted: October 4th, 2008, 4:08 pm
by MICK
I saw that Mike thanks
That just seems a little odd to me?? I have driven a couple manual trans Ford diesels before and they just idled down the road. I'm looking at Bob's pic and it seems to me he's darn near screaming it's guts out. And only doing 68 mph. I see it's an automatic, I guess GM's transmissions work a lot differently than Fords do huh? It's a diesel, can you gear that sucker up and still pull a good sized load?
Posted: October 4th, 2008, 9:37 pm
by ISBB
thats right on par for a dmax.. anywhere from 1800-2k depending if the converter is locked up or not.
Posted: October 4th, 2008, 10:02 pm
by quantum500
MICK wrote:I saw that Mike thanks
That just seems a little odd to me?? I have driven a couple manual trans Ford diesels before and they just idled down the road. I'm looking at Bob's pic and it seems to me he's darn near screaming it's guts out. And only doing 68 mph. I see it's an automatic, I guess GM's transmissions work a lot differently than Fords do huh? It's a diesel, can you gear that sucker up and still pull a good sized load?
The most your gonna gain from gears is about 3mpg 1700 is about as low as you wanna go. A boost gauge is a huge help in getting better economy. If you can keep off the turbo you will see better mileage, its as simple as that.
Posted: October 5th, 2008, 10:07 pm
by NightBiker07
our 7.3 Excursion with a few mods pulls 32 MPG FULLY LOADED going on vacation hauling 70 down the Eway. and unloaded, this thing hauls ASS.
you cant beat a diesel!
Posted: October 6th, 2008, 7:09 am
by MICK
quantum500 wrote:The most your gonna gain from gears is about 3mpg
That's a big difference with today's gas prices!! What I'm paying in premium fuel right now that would save me $14 dollars at the pump...a week. When I went to 4.56s from the OEM 3.92s my hwy miles oddly remained the same but my city mileage went up 2 mpg. My small block V-8 doesn't have the grunt yours do to pull tall gears
Posted: October 6th, 2008, 7:55 am
by hoofarted
NightBiker07 wrote:our 7.3 Excursion with a few mods pulls 32 MPG FULLY LOADED going on vacation hauling 70 down the Eway. and unloaded, this thing hauls ASS.
you cant beat a diesel!
32?!
The overhead lie-o-meter does just that...lie. I have an 03 Excursion 7.3 with lotsa mods and rarely get 25ish hwy doing 70, empty. Towing is more like 15-17 at best - I tow a 28' 10k lb WW. Still waay better than a gasser. Only if those asshats would lower the cost of diesel to below gas where it belongs. Oil below $90/barrel today. WTF?? Gas should be under $3/Gal - what gives? Sorry for the small rant.
Posted: October 6th, 2008, 8:35 am
by britincali
hoofarted wrote:
NightBiker07 wrote:our 7.3 Excursion with a few mods pulls 32 MPG FULLY LOADED going on vacation hauling 70 down the Eway. and unloaded, this thing hauls ASS.
you cant beat a diesel!
32?!
.
X193845889034825398802826896
Posted: October 6th, 2008, 8:36 am
by fastkart
hoofarted wrote:
Gas should be under $3/Gal
$3.04 in Iowa this past weekend... before the drop in oil.
Posted: October 6th, 2008, 8:41 am
by AlisoBob
britincali wrote:
X193845889034825398802826896
X193845889034825398802826897
Posted: October 6th, 2008, 8:46 am
by britincali
Posted: October 6th, 2008, 8:54 am
by teemtrubble
NightBiker07 wrote:our 7.3 Excursion with a few mods pulls 32 MPG FULLY LOADED going on vacation hauling 70 down the Eway. and unloaded, this thing hauls ASS.
you cant beat a diesel!
Wind resistance is a bitch for sure. Doing just five more MPH on the freeway costs me 2-3 mpg. 70mph is definately optimum cruising speed for my truck. Bob what's your Duramax turn at freeway speeds? 1200-1500?
You must have some really low tow / haul gears in that bad boy 
