issue RECALL - Fire Risk

[MIZ14sierra]

The only reason the government likes ethanol (and gives OEMs a big CAFE credit) is for the reduction in fossil fuel usage. They're trying to reduce our crude intake. Plain and simple. Same thing with E10.

 

For the FUEL consumer, E85 is a wash. $$$ per mile is essentially the same compared to E10 or E0. The problem is that ethanol is largely produced from corn, which impacts the farming and ranching industries to some degree. I've heard that E85 may actually drive up the cost of other farm and ranch grown items. So it may not be a wash when you look at how E85 impacts other US industries and products.

Corn lobby in Washington has a big impact on the ethanol mandate. Lots of rich corn farmers in the last 15 years. US is swimming in so much ethanol because the RFS mandate is in gallons of ethanol, not a % of US gas consumption, so there is literally not enough gas to put it in at a 10% dilution as our consumption goes down each year /w better MPGs and fuel prices. EPA is trying to extend to 15% dilution and Automakers have pushed back. Its very energy & capital intensive to refine ethanol to get the last 5% or so of water out after the azeotrope, significant drying and use of mol-sieves, not very straight forward fractionation, not to mention corn is one of the most water inefficient crops out there, so corn based ethanol is not as "green" as it's marketed as. E85 is not a wash if it costs the same or MORE as 87 octane E10, there is at least a 25% mile reduction built in. E10 vs E0 is still a problem with water absorption/small engine/marine and it DOES have less BTUs/gal than E0

[Dnt]

Well darn it I was hoping that the GM engineers had figured out how to make this 2014 engine tune itself so it would burn the E85 just as efficiently as the real gasoline. I have joined Fuelly and plan on using 87 octane nonethanol for several tanks and then using E85 for a few tanks to do a real world fuel mileage experiment. Sounds like I am going to be dissapointed with the E85 (poor ole rich corn farmers). So far I am averaging around 18 over the first 2600 miles which is about what my 2009 was getting.

[gmckidd]

well I just got mine back from dealer for the over heating exhaust fire recall and I also notice it

hardly goes into 4cyl now and a huge drop in fuel mileage. not sure but it seams I have less power? It is 2 1/2 months old with 3,000km and the mileage was about 14lt/100km and now after 4 days of city driving

since recall was done I am in the high 19 litre per 100km. something has changed since the ECM re-program

[Murry11]

Hello I had this recall for active fuel management done about 3 months ago . Since then my fuel mileage has gone to hell . I now have 46000 kms on my truck my best was 9.6 L per 100 kms and my average was 11.5 L PER 100 km driving to work and back . I drive 110 kms one way to work . Since recall my average is 14 to 15 L per 100 kms and black carbon at back of box at tail pipe area . Truck is white . There is a file on truck with Gm . How many other people has lost economy with update ??

[Dnt]

am on my 4th tank of E85. I like the additional pep and HP but I am probably going back to 10% the price is currently 3.29 for E-85 versus 3.39 for 10% so it costs more to use it. I will have to say that the truck will still get very good mileage if you work at it a bit but I think I am getting bored with mpg so I may be driving more aggressively now and that may add to the drop in mileage I am experiencing. 18 to 16 lately. I hate these GoodYear tires I try to leave a little bit at each stop sign on the road surface truck with E85 cooperates well with good wheel spin on take off. Good Years should be gone pretty quickly

[Delta Tango]

Hello I had this recall for active fuel management done about 3 months ago . Since then my fuel mileage has gone to hell . I now have 46000 kms on my truck my best was 9.6 L per 100 kms and my average was 11.5 L PER 100 km driving to work and back . I drive 110 kms one way to work . Since recall my average is 14 to 15 L per 100 kms and black carbon at back of box at tail pipe area . Truck is white . There is a file on truck with Gm . How many other people has lost economy with update ??

I've lost fuel economy too. I burn approx. 5L/100 km more now than before the download. Here in Alberta we've had some bogus weather, and with that, a bit more idling. To compensate, I try to drive more like a "geezer". That's not the answer eather as most people drive 10-20 km per hour over the speed limit, particularly on major highways and freeways. So I have a choice, drive like everybody else, and burn more fuel, or drive slower than everybody else to try and get fuel economy the way it was (good luck)....and get rear ended.

[Aaron1085]

GM done anything about this?

 

Sent from my DROID RAZR HD

 

 

[Murry11]

Gm haps scanned my truck and have called me to see if Milage has improved and asked if I would remove my complaint . I will not until mpg go back to pre recall mpg .i would like people to call Gm and file a complaint . I was told by dealer my mpg would improve after recall and that's not the case . right now my mpg is way worst than a ford Eco boost ,! I had on for 75 days and traded it in on this Gm .