Jump to content

E85 2016 Silverado Reg Cab 6spd 4x4 5.3 upgrade

SCR71822

By SCR71822
in Modifications & Accessories

 Share

Recommended Posts

Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted
27 minutes ago, TXGREEK said:

 


I’m all about clean burn, will I be able to use super and e85 if I converted/switched?


Sent from above

You can run it now even if you are not FF.  My 2002 isn't and I run it with no problems.  I don't get the performance benefit but I do get the clean burning as well as the higher octane.  I usually run a 50/50 mix in the winter since it does tend to start harder at temps below 38°F.    I have been running it now for 3 years with no issues.

  • Like 1
  • Replies 94
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

SCR71822
SCR71822

There are three reasons I want to be able to run e85, it can make more power, it is readily available in Illinois, and its cheaper than 87 but has over 100 octane.   I've been running e15 in

SCR71822
SCR71822

Well I have since added a recalibrated thermostat 180-190 that gives me a good temp drop but not too low so cold weather driving and the Air Raid modular intake pipe. I started changing parameter

Black02Silverado
Black02Silverado

Agree, but there is an advantage to running E85.  It burns super clean. So carbon buildup is not an issue. Another one is the higher octane, and one other thing, at least for me.  I like the smell of

Posted Images

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted

I’ve got a 100K extended warranty on my 6.2 and don’t want to deal with reprogramming the ECM. I may go put $10 worth tonight heehee


Sent from above

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted

Maybe this is a question for Karnut, he’s very familiar with E85.

 

Can you run 20-50% E85 in a 5.3 and 6.2 without retuning your ECM??

 

 

Sent from above

 

Jacoby Enthusiast

Jacoby

Posted
Posted

The “Flex” in Flex Fuel means it’s flexible and able to burn regular fuel and ethanol

  • Like 1
Jacoby Enthusiast

Jacoby

Posted
Posted
5 minutes ago, TXGREEK said:

Maybe this is a question for Karnut, his very familiar with E85. Can you run 20-50% E85 without retuning your ECM??


Sent from above

Yes. The flex fuel sensor reads the alcohol content and automatically adjust the tune for it. 

  • Like 1
TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
The “Flex” in Flex Fuel means it’s flexible and able to burn regular fuel and ethanol

I know that, can it be mixed in with super or regular without being flex fuel?


Sent from above
TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
Yes. The flex fuel sensor reads the alcohol content and automatically adjust the tune for it. 

Ok, I’m going to give it a shot in about an hour


Sent from above
Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted
Just now, TXGREEK said:


I know that, can it be mixed in with super or regular without being flex fuel?


Sent from above

Yes  I mix it all the time.  No issues.

Jacoby Enthusiast

Jacoby

Posted
Posted (edited)
1 minute ago, TXGREEK said:


I know that, can it be mixed in with super or regular without being flex fuel?


Sent from above

Yes. But there is no point. You either run gas or E85. No need to blend fuels. 

 

Only reason to blend is if your fuel system couldn’t handle a high percentage of E

Edited by Jacoby
TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
Yes. But there is no point. You either run gas or E85. No need to blend fuels. 
 
Only reason to blend is if your fuel system couldn’t handle a high percentage of E


I’d like to just run e85 whenever but I don’t have a 6.2 flex fuel kit yet and the question was if I need a conversion kit for my 6.2 before I can run E85?


Sent from above
Jacoby Enthusiast

Jacoby

Posted
Posted
3 minutes ago, TXGREEK said:


Ok, I’m going to give it a shot in about an hour


Sent from above

Wait my reply to you was if you had a flex fuel capable vehicle. If you don’t then running E85 is a complete waste of money and will hurt the performance of your truck

  • Like 1
Jacoby Enthusiast

Jacoby

Posted
Posted
1 minute ago, TXGREEK said:

 


I’d like to just run e85 whenever but I don’t have a 6.2 flex fuel kit yet and the question was if I need a conversion kit for my 6.2 before I can run E85?


Sent from above

 

Yes you need one. It’s absolutely pointless to run it if the ecm won’t adjust. There is no benefit at all. It will actually hurt your performance. 

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
Wait my reply to you was if you had a flex fuel capable vehicle. If you don’t then running E85 is a complete waste of money and will hurt the performance of your truck

 

That’s what I wanted to know. Black02silverado says he uses it in his older 6.2 all the time with zero issues hmmmm

 

 

Sent from above

KARNUT Senior Enthusiast

KARNUT

Posted
Posted

I ran E-85 in my 14 because it came capable and using it would give additional HP. It seemed to like it and I could get it cheaper that reg sometimes definitely cheaper than premium. I would usually tune my truck for premium and get the boost in performance that way. I did tune the transmission and turned off the cylinder deactivation. I did raise the shift points and RPMs and set the transmission at 50 percent TM. Every thing I’ve read says don’t put E-85 in a non flex fuel vehicle.


Sent from my iPhone using Tapatalk

  • Like 2
TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
I ran E-85 in my 14 because it came capable and using it would give additional HP. It seemed to like it and I could get it cheaper that reg sometimes definitely cheaper than premium. I would usually tune my truck for premium and get the boost in performance that way. I did tune the transmission and turned off the cylinder deactivation. I did raise the shift points and RPMs and set the transmission at 50 percent TM. Every thing I’ve read says don’t put E-85 in a non flex fuel vehicle.


Sent from my iPhone using Tapatalk


Appreciate it! Looks like I’m staying for Chinese tonight.


Sent from above
  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      Sugar Bears 2015 GMC Terrain SLE-2 2.4 AWD

      By Grumpy Bear · Posted

      286,740 Mile Services   8/6/2026   New AC Compressor. Refrigerant oil and dye, evacuate and charge system.  New exhaust system from cat back.  New Iridium plugs plus replace #3 coil Repair/rewire headlamp wiring (passenger side) and replace all forward bulbs. Polish lenses of both assemblies.  Pull rear rotors, clean and adjust parking assembly. Inspect, clean and grease front calipers. Check pads and shoes.  4 wheel power bleed of brake system. Dot 4 Reset idle speed 50 rpm higher New Serpentine belt.    Will need new pads in the rear in about 5K more miles.    Tax Title and License out the door just short of a grand.    AC clutch had bitten the dust. 1 year warranty on the pick and save replacement. Thing will make a Polar Bear cry Uncle.  He spent quite some time on the wiring. It was in the harness and he does nothing half. I got off cheap. I have considerable more light down the road. Sylvania Silver Star replacements.  Gas seal between the porcelain and shell of plug #3 was blown, cooked the coil. That was the cold miss.  Love the new exhaust. I can sneak into the neighborhood again.  Nice to have a working parking brake again. Belle Tire never got it done. That was disappointing.    This was one of her bigger bills and still way cheaper than a payment even given the oil consumption. This thing cost me under a hundred a month in repairs and normal routine costs. What is my incentive to replace it? 🤔           
    • AidenVorpagel
      cam upgrade in CA

      By AidenVorpagel · Posted

      hello I recently bought a 2012 gmc 1500 with a 5.3 and have a AFM disabler on it I'm interested in doing a cam but I'm worried if I remove the AFM system I will fail smog does anyone have info if they are able to detect that or a work around to it (not talking about hot smogging) please let me know thank you  
    • B14Sierra
      Noise after AFM delete

      By B14Sierra · Posted

      Did you figure it out?
    • B14Sierra
      Possible lifter tick after DOD delete

      By B14Sierra · Posted

      Update. I started chasing down my symptoms. Started first with pulling valve covers and looked at everything. Everything looked good and couldn't hear or feel anything different. Then a compression test. 240 psi or really close on each cylinder. I was worried I was a tooth off of timing. Not bad for an engine with 173,000. Granted I did put new heads on. I sprayed water around the injector area to see if I could hear a change. Nothing. I hooked up my new hp tuner which I should have done in the first place but I don't really know what I'm looking at just yet but am learning. I noticed the fuel trims were way off so that told me I have to have either a bad injector or exhaust leak. New injectors, so I did the shop vac on blower and in the tail pipe. Sprayed soapy water and found the exhaust flange on the drivers side was leaking. I didn't think it would be that considereding I pulled the heads and left the manifolds attached. I did have the transmission replaced not long ago. They must have not seated them properly but I guess I didn't notice. I put in new gaskets on both sides. Which by the way isn't a bad job but I had a hard time getting them to seal right. Took two attempts. Reset the fuel trims and the ticking is gone, engine runs smooth and acceleration has improved. Got to feel the real difference with that stage 1 cam. It's not that big of a difference but it does add a little more. It feels like how the truck should have been from the factory.
    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      Can it still be Assembled I?    Stribeck says that we need a certain amount of viscosity under conditions of load and velocity to prevent two surfaces of a know roughness from tearing each other asunder. And we have marketing trying to tell the masses that those two surfaced require less of that commodity due to more exact limits being placed on the same old clearances. We also know that there are limits to how hard something can before it becomes to brittle to be viable and to smooth to 'wet' the surface and that both of those conditions have been known and met since about the Second World War.    That viscosity value shook out at 10 centistokes at 212 F just under a hundred years ago.  Give this a look: [Anton Parr]     What is advertised is the Kinematic viscosity (mm2/s) or that which has been density adjusted but the value we are after is the dynamic viscosity (mPa.s) or true viscosity. You can see that this number is dependent on density thus base stock and temperature. You can also see that an SAE 30 doesn't reach that value in this example. However an SAE 30 that is at the upper end of the SAE 30 range; 12.5 cSt (mm2/s), might. 12.5 * .83 = 10.375 (mm2/s). If you could find an SAE 30 at the upper end these days.   Then there is the complication of viscosity modifiers or VII or VM, whatever you wish to call them. Polymers added to very thin base oils, perhaps 3 to 6 cP oils, that will meet the SAE *W30 spec at 'tested' shear rates and 100 C/212F  target temperature. So a polymer fortified base that is a fraction of the 10 cP requirement Stribeck insist upon.   This could be all well and good if those polymers didn't have two very problematic 'features'. They shear or loose viscosity both 1.) permanently and 2.) temporality. And they do both omitted in the advertised data with the distinct  purpose of deceiving the consumer of the actual operating state of the fluid. I've shown the example of Warren Oils COSTCO 10.91 cSt 5W30 formuation several times where the 100 C HTHS value is 6.9 cP!! That's the temporary shear down and with and SSI or shear stability index of 9.4 cSt. Note the intentional deception in using mixed units?    After a short while that 9.4 cSt oil has a viscosity corrected dynamic value of 7.8 cP. But as the SSI is still within the range of an SAE *W30 whose lower value is 9.3 cSt.    This allows them to continue to call this SAE 16 weight oil a 30 weight, the cake, and still meet the API requirements for fuel efficiency IMPROVEMENT mandated by the EPA. The eating of the cake. By the time you've worn out your motor doing the responsible thing by adhering to the warranty requirements, (the stick), you get deprived of the carrot, wear control. So sad, to bad.   So what can be done? Do I need actually say? [Anton Parr]       Even this must be monitored if the oil is on the low side and the VII an organic or you opt for a 0W40 with an even lighter base oil and more / higher MW VII. (Note the lower density of the 40 weight versus the SAE 30 mono-weight?)    There is another workaround. Temperature. An SAE *W30 run at a bulk temperature of between 180 and 195 F.    Being the belt and suspenders sort I am I do both. Run it cook and run it heavy.    In Part II I'll work the AW package. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...