Reply
 
Thread Tools Display Modes
Old 03-13-2010, 07:55 AM   #11
Senior Member
 
HookupAndGo's Avatar
 
Join Date: Feb 2008
Location: Melbourne, FL
Posts: 170
Following up MightyMike... I initially had a 2001 Expy with the 4.6L (forget now) and used it to tow a 26' TT. Empty, 21mpg on the open road. Towing, usually about 9 mpg. We wanted a bigger TT, so traded in the 01 Expy and got a 06 Expy with the 5.4L. Towing the same 26' TT, mileage dropped a little, to about 8.75. However, I was now driving about 5 mph faster 65-70 with no problems...truck just hummed right along.

So, time for the new TT, I upgraded to a 31' (8318). Mileage dropped down to about 7.9-8.5 depending on how hard I pushed it. But, generally, the speed was about 62 mph and average was about 8.1.

Next stop, an 06 F250 SC LB with the 6.0L. On my last trip to the Keys with 2 kayaks up on the racks, running about 68-70, I saw a solid 10.5 mpg. I have towed on shorter trips and seen just under 10 mpg (9.7). Found that kinda odd... Running empty at 70 down the highway, I am seeing about 19.5.

We still have both the Expy and the F250 and do a lot of in town driving on both. Both are sitting at about 14.8mpg over hundreds of in town miles (Melbourne, FL).

Anyway, as others have pointed out, the maintenance cost of the Diesel is higher, the fuel cost is higher...

Do I need the diesel for pulling, I could get by with the Expy. But, I really really really hate the borderline power, the stopping for fuel every 180 'ish miles (every 3 hours stinks). With the diesel I can go as long as my bladder (and the kids), I can make much better time on the road, and I feel really comfortable driving it. Nothing like having to worry about staying off the pedal -- this thing really wants to run about 73 for some reason so I have to fight myself to keep it at about 67-68.

In the end, it just comes down to what is comfortable and affordable. I love this truck and really would hate to go back to gas, but in a bigger 250 class with a big hemi or properly geared 5.4L, then maybe.

Good luck
__________________

__________________
2013 Georgetown 351
Much more significant other....
2 Kids and a dog that rules!
HookupAndGo is offline   Reply With Quote
Old 03-13-2010, 08:44 AM   #12
Senior Member
 
Join Date: Sep 2007
Posts: 3,260
Quote:
Originally Posted by mtnguy View Post
Wade, I get a little better in both towing and non-towing, but not by much. I have a smaller engine (5.4) and a little stiffer gears (3.73). In the hill country that we have around here, I sometimes wonder if the lower final drives might actually help the gas mileage. That 4.10 and bigger engine will definitely help you off of the line.

Again, I am not trying to start a war here with diesel vs. gas fuel mileage. I just want to hear a viable discussion on the pros and cons so if I decide to get a new truck then I can make an informed decision on which way to go. The maintenance cost that Wade brought up is another part of that equation.
No war started, but this is good. I am lerning a lot from this post for the future. This brings out what the real world is do. Before I bought the 2008 gas I had look at 2500 HD diesel but I could not see spending $50,000 for a truck to pull a 7,900 lbs TT camper when I could spend $28,000 and still be with in range and still room for a little extra cargo with a gas engine. By time my camper is ready for the junkyard and decide to by a bigger and heavier camper, the technology will change on the diesels as it will on other types of engines and then I may spend the extra money on a diesel. This is just my view based on the replies so far. The thing I miss on my 1997 Suburban is the bigger fuel tank, it had a 46 gal tank but my new truck has a 26 gal tank.
__________________

__________________
rockwood06 is offline   Reply With Quote
Old 03-13-2010, 09:19 AM   #13
Moderator Emeritus
 
MtnGuy's Avatar
 
Join Date: Sep 2008
Location: Shenandoah Valley
Posts: 9,274
Like Wade said, I think there has been very good input on this thread. Seeing some real numbers between these 2 petro setups is great. Overall, it looks like the older diesels get better mileage, with the EPA regulations killing the mileage on the new diesels. The manufacturers are advertising the gassers as getting a little better mileage then a couple of years ago. I understand that for pulling power, the diesels are boss, but now no better fuel economy than gas engines, and maybe worse when empty.

Thanks to all that responded, and hopefully others will still chime in so that we can get a better overall picture on these mileages.
__________________

Chap , DW Joy, and Fur Baby Sango
2017 F350 Lariat CCSB, SRW, 4x4, 6.7 PS
2017 Grand Design Reflection 337RLS
MtnGuy is offline   Reply With Quote
Old 03-13-2010, 11:09 AM   #14
Senior Member
 
Join Date: Apr 2007
Location: Justin, Tx
Posts: 2,671
Folks I would also like to thank everyone for their honest and thoughtful input with real numbers. And I really dig the fact that this is NOT a diesel vs. gasser war. Each have their pluses and minuses and this thread may help some on the borderline make an informed decision.


Just another reason why FRF is THE BEST DANG RV forum on the web. Our members are the tops.
__________________
aintgotnun is offline   Reply With Quote
Old 03-13-2010, 11:25 AM   #15
Senior Member
 
Join Date: Sep 2007
Posts: 3,260
Quote:
Originally Posted by aintgotnun View Post
Folks I would also like to thank everyone for their honest and thoughtful input with real numbers. And I really dig the fact that this is NOT a diesel vs. gasser war. Each have their pluses and minuses and this thread may help some on the borderline make an informed decision.


Just another reason why FRF is THE BEST DANG RV forum on the web. Our members are the tops.
Amen to that. One thing I would like to say, this a reflection of Mike (MRimmer) For attracting such a great group of members when he started this Forum, Hats off to you Sir.
__________________
rockwood06 is offline   Reply With Quote
Old 03-16-2010, 03:38 PM   #16
Site Team
 
acadianbob's Avatar
 
Join Date: Mar 2008
Location: St. Paul, Minnesota
Posts: 2,920
I'll thrown in another wrinkle. The truck that I am waiting for is the F150 with the ecoboost V-6 (s/b 2011 model). Reported to be 400HP and 400+ft lbs of torque. The BEST thing is that peak torque will be available at about 1,700 RPM; right where you need it for towing; very diesel-like; compare that to about 3,500 RPM torque peak for many current gassers. Cost (reported to be $1000) is way less that a diesel, fuel costs less, mileage is reported to be up 20% (as high as 23mpg highway). For many of us, I think this will be a clear winner. Unless you have a large 5er where even more torque and load capacity is needed, this combination seems very persuasive to me; especially if you consider the ride and handling negatives of the Heavy Duties. Don't start flaming if you have a HD diesel; I'm not knocking your pride and joy. They are very capable but you have to admit that there is some downside. All I'm saying is that there are some very interesting new gas powertrains coming along that will be game changers. There will be big advantages without going all the way to a bigger truck and a diesel.
__________________
http://i421.photobucket.com/albums/pp297/acadianbob/IMG_2757.jpg
2012 F150 FX4 Ecoboost, 2016 Surveyor 274BHS
2003 Yamaha FJR1300, Demco Premiere Slider
1969 John Deere 1020, 1940 Ford 9N, 1948 Ford 8N
Jonsered 535, Can of WD-40, Duct Tape
Red Green coffee mugs
acadianbob is offline   Reply With Quote
Old 03-16-2010, 09:36 PM   #17
Site Team
 
acadianbob's Avatar
 
Join Date: Mar 2008
Location: St. Paul, Minnesota
Posts: 2,920
Another benefit to turbo's (ecoboost) is that they perform better in high altitude situations compared to naturally aspirated. So, if you go to the mountains frequently, it is a benefit.
__________________
http://i421.photobucket.com/albums/pp297/acadianbob/IMG_2757.jpg
2012 F150 FX4 Ecoboost, 2016 Surveyor 274BHS
2003 Yamaha FJR1300, Demco Premiere Slider
1969 John Deere 1020, 1940 Ford 9N, 1948 Ford 8N
Jonsered 535, Can of WD-40, Duct Tape
Red Green coffee mugs
acadianbob is offline   Reply With Quote
Old 03-22-2010, 07:29 PM   #18
Member
 
Greenshield's Avatar
 
Join Date: Mar 2010
Location: Easton, MD
Posts: 64
I was using a 2006 FX4 crew to tow a Rock 8317rkss Reese Dual Cam and was white knuckle, slow and right on the edge of capabilities. I was looking to get the new F-150 w/ new 400 HP and Heavy Duty Tow Package. Price was going to be steep and have read that for many trips towing, gassers ware out fast plus wheel base was short for my trailer.. I did some looking and found a used 2008 Crew F-250 Lariat with 6.4 diesel with 25,000 miles, flawless and full maintenance records( plus talked to the former owner whom is local). I got it for 28,000 OTD after some negotiating, made 3000 on the trade in equity that I then put on the Lariat. I just had my first tow with it and it was night and day. I have full warranty still and got 17 MPG on flat land. I am very please to have made the purchase thus far and I am aware of the maintenance costs, so I bought a maintenance package from dealer for 550 lifetime care, again much negotiating. Got Diesel for 2.95/gallon at Exxon in my town, 17 cents more than 87 octane and I get better mileage. Did I mention my monthly payments are 20$ less a month? Now is a great time to buy a used Diesel TV, I suggest used as the new ones are way too expensive to justify. The sense of security and lack of worry and added room for my family of five is well worth it!
__________________
Greenshield is offline   Reply With Quote
Old 03-22-2010, 10:43 PM   #19
Senior Member
 
Join Date: Jul 2008
Location: Kansas City, MO
Posts: 126
I bought Chev 2500 6.6 diesel and get 18-19 mpg when I keep my foot out of it.
On flat land I get 13 ot 14 mpg, in big hills 8 to 12 mph. I did not buy it for fuel economy,I bougth it for power, and durability. If I was worried 1 or 2 mpg more or less I wouldn't have a TT. With this pick-up I go where I want when I want. I had a gasses and did't like running at 4000-4500 rpm on small hills in Kansas flat land.
__________________

Life is something to do when you've finished breakfast
Chuck & Margie
Both Retired
08 2500HD Silverado 6.6L Duramax
Flagstaff 829fkss
Round Mound of Sound is offline   Reply With Quote
Old 03-22-2010, 11:00 PM   #20
Senior Member
 
NWJeeper's Avatar
 
Join Date: Aug 2008
Location: Enumclaw, WA
Posts: 2,617
I wished the automakers would give us a smaller diesel rig. I would really like to have something the size of our '94 Toyota with a 4 cyl, turbo diesel for hauling my boat. I know they have them in other countries but we can't have them here. I don't need a huge truck, my boat is only 3700lbs. I also really appreciate the nimble ability of our Jeep Liberty at the tighter boat launches for maneuverability (another reason I don't want a huge truck). I think a smaller truck with towing capacity of 6000lbs or less and a smaller diesel engine that would get good mileage might be a great seller here.
__________________

__________________
"I can fix it, and if I can't fix it, I can fix it so no one can fix it!"
Ed & Wendy
2009 Georgetown 378TS | 1998 Jeep Wrangler | 1998 Skeeter ZX202C
Nights camped in 2009: 53 | Nights camped in 2010: 55
www.nwjeepn.com
NWJeeper is offline   Reply With Quote
Reply

Tags
diesel, gas, mileage

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 06:54 PM.