2010/2011 Diesel Engine Change?

[gnet158]

Hi guys, I've been looking for a new 2500 HD and the sales guy told me that they have been flying off the lot because GM redesigned the diesel engine for the 2010/2011 and newer trucks? He also said something about GM needing to meet the new emissions standards and something about older diesels not needed a fuel additive?

 

What's the real difference between the two (besides more HP and tourqe?

 

Sorry if this has been asked before.

 

 

Thanks!

[r1byker]

Yes, all true. I bought a 2010 Duramax that does not need the Diesel Emissions Fluid (DEF) since it was manufactured in 2009. The later 2010 trucks and following will use urea injection to cut the NOx output. This requires a separate tank for the urea which has to be refilled periodically.

On the plus side, the new engines put out a lot more horsepower and torque.

[ColoradoSkiCountry]

Fuel economy improved on the 2011 Duramax as well. I just don't like the idea of using DEF and the requirements of having to fill that thing and with it shutting down the engine if you happen to run out.

[newdude]

2010 diesels I think are somewhat few. Production of the Duramax was shut down for 4 months (Jan-Apr 2010). Production of the LMM stopped right before 2010 emissions standards took place. No 2010 trucks with LMMs have urea injection. Now, as for 2011, all are urea equipped.

 

As far as Duramax upgrades from LMM to LML:

 

From http://media.gm.com/media/us/en/vehicles/c...1.brand_gm.html

 

-Main bearings’ profiles changed to enhance oil film thickness

-Oil pump flow increased for increased pressure at low speeds

-The turbocharger’s oil circuit is changed to provide increased pressure at the turbo and faster oil delivery

-The connecting rods’ pin ends are modified to provide increased piston support

-New, higher-strength piston design that eliminates bushings to provide lower reciprocating weight

-An EGR cooler bypass reduces high-mileage soot deposits in the cooler and EGR circuit

[alaska511]

If the Diesel EXHAUST Fluid tank goes empty, it will not shut you down for a long time. You get plenty of warning as the tank gets low, and you will get a power reduction if it empties. Plenty of time to get to a station.

 

DEF is readily available almost everywhere now.

 

This is all a good thing, we have engines now with reduced EGR in the cylinder, hence the power and mileage gains. SCR is a good thing.

[newdude]

If the Diesel EXHAUST Fluid tank goes empty, it will not shut you down for a long time. You get plenty of warning as the tank gets low, and you will get a power reduction if it empties. Plenty of time to get to a station.

 

DEF is readily available almost everywhere now.

 

This is all a good thing, we have engines now with reduced EGR in the cylinder, hence the power and mileage gains. SCR is a good thing.

 

 

Its a 9 level warning sequence. Levels 1-4 deal with having 1000 miles more or less of urea. Levels 5-9 deal with speed limiting. When the tank has about less than 100 miles left is the final threshold. The next key on after that warning limits you to 55mph. The next warning takes place after a fuel refill, which still limits you to 55mph. If you key on and fill your tank 1 more time, without filling up on DEF, you are then limited to 4mph. These 4 I listed are level 6-9.

[r1byker]

2010 diesels I think are somewhat few. Production of the Duramax was shut down for 4 months (Jan-Apr 2010). Production of the LMM stopped right before 2010 emissions standards took place. No 2010 trucks with LMMs have urea injection. Now, as for 2011, all are urea equipped.

 

Oh yeah; I got one of the few. I went from looking to buying in about five days when I heard about the new emissions requirements.

[gnet158]

Is there a list of DEF fluid stations or distributors? Can I get it from the dealer? What's the cost?

[newdude]

Is there a list of DEF fluid stations or distributors? Can I get it from the dealer? What's the cost?

 

 

I would say anywhere between 4-7 at auto parts stores or whoever carries it. I talked to our parts guy at the dealer I am at, and he brought up the part number for it. I believe its was around $14 a gallon, so it stands a chance that it will cost more at dealers than other places.

 

An example: I tried O'rilley auto parts website, and picked a store in Clevland (none in NY so I had to pick one somewhere). http://www.oreillyauto.com/site/c/detail/P...l+exhaust+fluid

 

Right now, they have Peak brand DEF at $4.99 a gallon, $11.99 for 2.5 gallons, and $209.99 for a 55 gallon drum. So, to fill the 5.3 gallon tank, you are looking at roughly $24.95 by the gallon for 5, one gallon jugs, or $23.98 for 2, 2.5 gallon cartons.

 

GM estimates an average of 5000 miles between fills, so thats an average of 943.4 miles gallon of DEF used. Driving scenarios can change the amount used.

[chrisb1]

The 2010's are available but few are in dealer stock. They do have a rebate but the 2011 does not.

The price advantage for a 2010 is great when compared to the 2011.

 

2011 production numbers are being controlled based upon dealer demand. Overtock conditions for

the 2011 will not likely happen.

 

Ford is already offering a rebate on the 2011 Super Duty. Perhaps GM will follow.

 

The 2011 GM suspension, brakes, engine, transmission improvements are huge and finally make the

GM HD competitive with the Ford in terms of towing, hauling and capacity.

[ColoradoSkiCountry]

Yes but Ford will never be able to match the reliability and performance of the D-Max. Chevy will always keep one step ahead of em Not to mention the Chevy looks 10 times better than what Ford did to the 2010+ Heavy Duty redesign.