6.2L (L9H) Owners - Get all your questions answered here

[bird38]

Yes, AFR table is zeroed out. Also, my MAF was set with a wide band since i added an intake.

[CRSilverado]

Yes, AFR table is zeroed out. Also, my MAF was set with a wide band since i added an intake.

 

Good deal! Have an HP Tuner log to post?

[bird38]

Sorry, im actually an EFIlive guy. I just have hptuners because its popular with my friends and instead of having them try to converty efi to hptuners i just scanned the tune out of my truck.

 

 

If you have EFIlive scan tool i can post up some logs that i took while tuning.

[CRSilverado]

Sorry, im actually an EFIlive guy. I just have hptuners because its popular with my friends and instead of having them try to converty efi to hptuners i just scanned the tune out of my truck.

 

 

If you have EFIlive scan tool i can post up some logs that i took while tuning.

 

Can you export them to a spread sheet so everybody can view? I tried to upload one mine but it wouldn't let me. You might try???

Edited April 4, 2014 by CRSilverado

[bird38]

Im currently on running on OSX. Let me switch back to windows and i will see what i can do.

[bird38]

I figured it out. What tables would you guys like to see?

Edited April 4, 2014 by bird38

[CRSilverado]

How about a complete pass from zero up? Or do you mean what configuration do we want to see? Time, rpm, speed, tp, timing advance, kr, MAF (Hz), Engine and tranny temps., current gear, manifold vacuum and of course afr.

[michigan2500hd]

So bottom line about e85..is my 2011 6.2 quicker or slower on e85? Stock tune for now.

[CRSilverado]

So bottom line about e85..is my 2011 6.2 quicker or slower on e85? Stock tune for now.

Based on what I see in the tune for my 2013 assuming yours is the same you will be slower on E85 without tuning.

[michigan2500hd]

That's so depressing. Hard to find a upside to running e85 now lol

[super6]

With the NHT pkg/ 3.73 & 9.5" rear end, anyone with this configuration on their L9H running Amsoil in front and rear diff? Did you see any jump in mileage?

 

 

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[EX-F150 owner]

With the NHT pkg/ 3.73 & 9.5" rear end, anyone with this configuration on their L9H running Amsoil in front and rear diff? Did you see any jump in mileage?

 

 

Sent from my iPhone using Tapatalk

From gear oil

[super6]

From gear oil

Hey "ex-150", that is sorta what I was thinking, but wanted to ask. Thought I read somewhere a guy claimed 1mpg better. You use Amsoil in your diff's? Thanks.

 

 

'12 Sierra 4x4 SLT 6.2l 3.73(NHT)

BBP tuned.

[EX-F150 owner]

Hey "ex-150", that is sorta what I was thinking, but wanted to ask. Thought I read somewhere a guy claimed 1mpg better. You use Amsoil in your diff's? Thanks.

 

 

'12 Sierra 4x4 SLT 6.2l 3.73(NHT)

BBP tuned.

I am still on all the original fluids, all but the engine oil. My truck only has 23K miles on it. I am running 0W-30 (Mobil One) instead of the 5W-30 that is recommended and I have not noticed any difference in MPG, but that was not the reason for me switching to this weight.

['01LS1]

From gear oil

 

It is the placebo effect of virtually every possible mod ever done to a vehicle after leaving the factory. From what I can tell, every mod adds 20 hp, but the debate is still between 1 OR 2 mpg improvement. Have seen forum posts(on other sites) where people were debating the effect of wax on mpg. Better wax, better mpg posts to boot.

 

That said, have not changed the gear oil on the 2013, but when I did the 2007 dually some years ago, it was some ugly(factory)stuff coming out. Put Schaeffers back in & just did the semi a month or so ago. Small side note, neither showed ANY fuel mileage improvement but were due from a mileage standpoint.