2011 Ford Super Duty gets a New 6.7 Liter Power Stroke.

IMHO They had the cream of the crop with the 7.3 Liter Power Stroke. Tossed that aside and went with a problematic 6.0, then to the 6.4. Now they say more economy with the 6.7???

They already have 2 bad runners, looks like possibly a 3rd. Wonder why they're not going to the 1 that worked for them the 7.3???

Auto Guide Reports So instead of getting the if lucky 16-mpg Highway, the 6.7 will get 17 maybe???

The 7.3 with my combo hwy/city driving I got 19-mpg, and didn't smoke like my "Clean Diesel 6.4" does. If I behaved I was in the 20's. A guy I work with has a '01 with the 7.3 and was around 22-mpg. The switch over to Ultra Low Sulfur put him down in the high teens.

The F-150 is going to get the Eco-Boost V-6. It's a 3.5 liter V-6 that should put out about 350 horsepower.

Kenny, that engine is called the Scorpion diesel. It is design by Ford and Volvo. As of Dec. 31, Ford and Navistar will part ways in the pickup market. They will still be partners in Blue Diamond (their medium truck division). If you google "6.7L Scorpion Engine" you'll get details.

If not for the tree huggers jacking up the emmission regs ever couple years on diesels, we would still have the 7.3 PSDs. The 6.0 was derived to meet the 2003 emmision standards, the 6.4 was to meet the 2007 standards. Navstar failed ford misserably with the 6.0 and 6.4s so Ford had to part ways and design there own. If Ford still had there 7.3s and none of this emmisions BS had been forced on the trucks, I would still be driving one, and I would still have a super capable truck that got near 20 mpg. Fuel mileage and these ultra clean emmisions are near imposible to acheive at the same time. It will be interesting to see how the new Ford Diesel works out. I know that ford will be adding the urea injection system to meet the 2010 standard. This is why the 2011 SD truck is coming out in Jan. 2010, and emmisions were why the 2008 with 6.4 came out in January 2007. The 2010s are cary over 08-09 models, like the 2007s were carry overs of the 05-06 models.

About fuel, I sometimes buy deisel in mexico. Especially when was $4 plus and in mex it was $2 per gal. The mex fuel has sulpher in it and I get 17 mpg and with US low sulpher I get 15mpg. Go figure.

I am not an engeneer by any means so I always wonder what happens to the extra fuel your burning when we dropped from around 20 mpg with the 7.3 and down to what 15 now with the 6.4.

If you burn more fuel while going less miles doesnt that dump more 'junk' in the atmospher and or put more in to the ground?

If I remember right we had to go to lower sulfer couse it was bad for the ground.

You can picture the changes like this. An engine is like a pump, and when you start shoving stuff in the system on the exhaust side to filter the exhaust, for example like EGRs (exhaust gas recerculater valvel), Catalitic converters, to start on the 6.0's. Then add what is called a DPF (Diesel particulate Filter) on the 6.4. They just keep adding more and more risistance to that pump system.

The DPF on the 08-10s traps the diesel particulats, then when it is full it goes in to a purge cycle where it uses diesel fuel to super heat the DPF filter to over 1000 degrees to burn out the particulates. Have you noticed all the really odd looking tail pipes on all brands of Diesel pickups after 2007. Those odd looking tail pipes were how the different manufactures were dealing with the massive amouts of heat generated in the DPF purge cycles.

So basicly you shove a bunch of corks in a 7.3s exhaust, then program it to run at much hotter temps to burn the fuel more completeyly. Then add a DPF filter that burns more fuel to purge itself. It would likley get even worse mileage than the newer motors.

What is really sad about the whole deal is, all these changes have doubled the price of the Diesel motor option, to top it off they dropped about 30% in efficency, and now that they run at these higher temps who knows if there is any hope for longer engine life out of diesel now.

The old 7.3 diesels ran so much cooler temps and were so much more simpiler in design they lasted for several hundred thousand miles. I highly doubt the newer generation motor will last any longer than a gas, and as it is now they are not as reliable as gas motors.

Our US government and the tree huggers have ruied the Diesel pickup engines.

Cat has said to heck with the emmisions and has backed out of the over the road motor business all together.

For 2010 emmisions they are adding this Urea system on top of all the other BS emmision systems, just to meet the new 2010 standards.

I use to love diesels. But not so much anymore.

This message has been edited. Last edited by: cc1999,

Proud owner of a 2003 7.3 Ford PSD. No major problems so far. Only complaint is the glow plug relay which seems to be a consumable item that cost almost $90.00 at the NAPA Store every couple of years.

I wish I knew then what I know now, hmmm.

I'd still have my '99 F-250, or a last 7.3 model year F-250, to use as a truck/tow vehicle, not a everyday vehicle.

I here ya, I had one of the last 2003s with the 7.3s. I also had a 2002 Excursion with a 7.3. I wish I had just set that excursion back for a special needs basis, just like you described. I have a 2009 Expedition EL now, and its not at all as capable as the old excurisons. I had this notion to get one of the last Excursion in 05' and sold my 02 with only 45K on the clock, big mistake, the 05 with the 6.0 was never anywhere near the same as the 02 with the 7.3, when it came to fuel efficency, or power, or reliabilty. The 6.0 had a few comon 6.0 problems, so I got rid of it, and bought a 07 suburban, and now an 09 Expedition EL. No more diesels for me till some mfg comes out with one that proves to be as reliable and efficent as the old ones, that and the technology comes down a little in price.

Here an article I ran accross today involvin the new 6.7L PSD.

quote:

Ford's Own Diesel Comes Online Next Year
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Source: http://www.detnews.com/article...ngine+for+Super+Duty

Detroit News - September 1, 2009

Situation
Ford will build its own diesel engine to power next generation of F-Series Super Duty pickups
New, 6.7-L turbocharged diesel V-8 to be manufactured at Chihuahua Engine Plant, Mexico
To debut on 2011 Super Duty in 2010; promises significantly improved torque, HP, economy
Navistar has been exclusive diesel engine supplier to Ford's Super Duty program since 1979
The 6-L engine began shipping in 2003; led to storm of quality complaints
Ford said last year it would sever relationship w/ Navistar once production of current trucks ends Significant Points
Ends bitter relationship w/ Navistar International
Ford made sure new motor can manage 250K miles w/o major hiccup
Ford bought back thousands of trucks; ultimately sued Navistar to recoup warranty costs
Designed, tested and ready to build its own replacement engine
New motor will be available in time to meet stringent new emissions requirements for diesels Says
"This all-new diesel engine has been so extensively tested both in the lab and in the real world that we're confident we're giving our customers the most reliable and productive powertrain available today." -- Derrick Kuzak, group VP, global product development, Ford Motor Company

"If you buy an engine from outside, that money leaves the company. Ford has gotten a lot of experience from its diesel joint-venture with PSA Peugeot Citroen in Europe. They should have the experience and capability to do it." -- Jim Hall, auto analyst, 2953 Analytics LLP

I will keep my old Dodge 3500 all you do is take care of it and drive it.Your nerver starts have to many problems for me

quote:

Our US government and the tree huggers have ruied the Diesel pickup engines.

Amen!

What's worse is the affect on the trucking industry. EVERYTHING you own was on at least one truck before you bought it. Expect major inflation.

Cat. backing out of the over the road industry speaks volumes.

All this to clean up those filthy diesels. The 2009's are SO dirty the exhaust plume coming out the tailpipe is actually cleaner than the average air in the L.A. basin!

Yikes--Ford building their own engine. Hope to heck they have a better product then GM did with their 6.5 in house diesel. I thought that experience set the stage for out side engines, ones built by companies that did it for real, not as sort of a after thought.

I dumped my 05 6L at 99k miles. I have no plans to get back in a diesel, I will just buy gas ans suffer the power loss. I like the Duramax the best of diesels right now. They still get 16-19mpg with DPFE's. My 6L got 14-17 and 6.4L got 12-14...

Speaking Gas motors, Ford is putting a new 6.2L 400hp gas V8 in the new 2011 Super Duty trucks. You can also order it in a 2010 F150 Raptor. It looks like a heck of motor, it replaced the 5.4 V8 and the V10 in the 2011 SD F250 and F350. You F450 is still the V10 with a 5spd, were the new 6.2L has a 6 speed behind it.

GM has sold 400+HP or so 6.2 alum engines with 6 spd autos for the last 2-3 years in their GMC Denali trucks. Now it is optional in Chevy Silverados. Ford is playing catch up.