TRKLGND

Nope. If your vehicle is not E85 capable you need to add the alcohol sensor and have a tune to take advantage of the sensor and the fuel. Someone said the plug on the harness is on every truck, you just need to add the sensor and tune.

It is a big deal if you are one of the 2% that now needs to spend $3k - $4k to fix something. And yes, it is completely up to the owner.

In Central Illinois, until the temperature drops to below 40 degrees, our E85 is 78% to 85%. Below 40 degrees and it drops to 60%-65% to aid in cold starting.

I agree with you. However, I would not tune a vehicle that is still under warranty. Not taking the chance of having my power train warranty voided.

I agree that E85 is not always the best choice due to price. However, the OP was about power, not price. Some folks are willing to spend a bit more on fuel to get a few more hp.

And a tune also potentially voids your power train warranty, if that happens to matter to you.

I have a soft tri-fold from GM and it leaks everywhere. The Gator roll-up on my last truck never leaked. Never had a hard tonneau.

Yes. If you own an Flex Fuel Vehicle you can run E85. E85 gives the 5.3L 28hp and 33lb ft of torque. 383hp - 416lb ft vs 355hp - 383lb ft. Unfortunately, E85 is not available everywhere. So, for you guys that can't get it, you need mods and a tune just to get the same power from your 5.3. Kinda sucks for you. You have to spend hundreds to get the power a guy from the midwest can get by switching fuels.

I did. You spent hundreds to get the same hp and torque as an E85 capable bone stock truck.

Your engine is rated at 383hp and 416 lb ft of torque using E85 (assuming it was E85 compatible) from the factory with no mods. Not sure what the tune, exhaust and CAI did for you. If you have a non FFV 5.3L then the gains you saw put it even with a stock FFV truck.

BTW - Superchips, Insight and Diablosport are owned by Holley. Their products differ cosmetically but they are all the same underneath. I was chatting with Tony from Diablo. I started chatting with Insight and the guy's name was Tony. He explained it to me.

Thanks to everyone for their input. A lot of this is just my personality. I am not a risk taker. I don't gamble, not even penny slots or $1 scratch off lotto cards. I suppose I could leave the truck alone and focus my attention of the girlfriend's 2010 Camaro RS/SS.

Not just a 30-50HP gain here either when you are talking about the TMC. I could see how it would be VERY easy to smoke a transmission.

That's good to know. I have had a lot of trucks and I have only had one go in for any kind of warranty work. Just lucky I guess. I hope the trend continues with this truck.

Of course you haven't. People don't go bragging about how they just paid $3500 in repairs because they were denied warranty coverage because of a tune.

So, trying to filter for info thru all of the noise, what I am hearing is that for my truck, using HPT, I need to send the TCM in to be unlocked ($200 and I can't drive the truck for a week), purchase an MPVI2 Pro ($550), purchase at least 2, possibly 4 licenses ($50ea) and download a tune. For about a grand I can have a tow tune, street tune and stock tune that I need a laptop to switch between. 40hp or so gain and much improved drive-ability. Using Trinity T2 EX for $560 I have have several canned tunes and can switch between them with the unit itself (no laptop). I will also have all of the monitoring functions provided by the unit. No word on the ability to tune the 8 speed trans so I am going to error on the side of caution and assume the Trinity cannot. 25hp or so gain with perhaps a small increase in drive-ability. For an additional $110 I can have a custom tune that will add another 15hp. The jury is still out on the trans. Both tuners will leave a digital footprint on the PCM and TCM so the dealer will know and GM can deny warranty coverage or at the very least make your life miserable fighting for the coverage. I an having a hard time justifying the possibility of losing warranty coverage on a $50k vehicle for 40hp and perhaps a smoother shifting trans. I am also curious as to what removing torque management does to the longevity of the transmission. The best case is it is not effected at all but I don't believe that for a second. The manufacturers wouldn't add it in if it didn't make the trans live longer. First off, I have a 2018 1500 LTZ DC 4x4 6.2L w/ 8 speed trans with no mods what so ever. The most I plan on doing is a CAI and maybe a CAT back exhaust. I was looking at the Trinity T2 EX Platinum with a custom tune from DiabLew for a few reasons. 1: I like the monitoring functions of the Trinity T2 EX. 2: I think I will like like the ability to switch back and forth between different tunes. 3: It's easy. One price for the programmer and a one time charge for the tune. Currently $710 for the Trinity T2 EX and a custom tune. 4: Can the Trinity tune the 8 speed trans? 5: What are the average power and torque gains on a stock 6.2L? There is a lot of talk about HP Tuners so it got me thinking if that might be an option. Let me say that I have NO interest in doing my own tunes. None! I am an IT professional by trade so technology doesn't scare me, I'm just not interested in doing my own tuning (at this time). So... what would I need to purchase to have a local shop tune my vehicle with their HP Tuners software? Hardware, software, a license? Can I go in and have them use their MPVI2 to do the data logging, create and write the tune or do I need to buy the MPVI2? I'd imagine I have to have it and the software to switch between different tunes. How many credits does it take to tune, including the 8 speed trans? I think it is 4. So, $550 for the MPVI2 Pro plus 4 credits at $50ea is $750. The HPT and the Trinity are close on price. What if I wanted to be able to go back and forth between a tow based tune and a tune more suited for "stop light racing"? Do I have to actually go to a shop so they can do some data logging or can I log data myself and send it to them? What are the average power and torque gains on a stock 6.2L? The million dollar question... can the dealer tell if you have flashed your PCM (even if you flash back to stock) and possibly deny warranty coverage?

First off, I have a 2018 1500 LTZ DC 4x4 6.2L w/ 8 speed trans with no mods what so ever. The most I plan on doing is a CAI and maybe a CAT back exhaust. I was looking at the Trinity T2 EX Platinum with a custom tune from DiabLew for a few reasons. 1: I like the monitoring functions of the Trinity T2 EX. 2: I think I will like like the ability to switch back and forth between different tunes. 3: It's easy. One price for the programmer and a one time charge for the tune. Currently $710 for the Trinity T2 EX and a custom tune. 4: Can the Trinity tune the 8 speed trans? 5: What are the average power and torque gains on a stock 6.2L? There is a lot of talk about HP Tuners so it got me thinking if that might be an option. Let me say that I have NO interest in doing my own tunes. None! I am an IT professional by trade so technology doesn't scare me, I'm just not interested in doing my own tuning (at this time). So... what would I need to purchase to have a local shop tune my vehicle with their HP Tuners software? Hardware, software, a license? Can I go in and have them use their MPVI2 to do the data logging, create and write the tune or do I need to buy the MPVI2? I'd imagine I have to have it and the software to switch between different tunes. How many credits does it take to tune, including the 8 speed trans? I think it is 4. So, $550 for the MPVI2 Pro plus 4 credits at $50ea is $750. The HPT and the Trinity are close on price. What if I wanted to be able to go back and forth between a tow based tune and a tune more suited for "stop light racing"? Do I have to actually go to a shop so they can do some data logging or can I log data myself and send it to them? What are the average power and torque gains on a stock 6.2L? The million dollar question... can the dealer tell if you have flashed your PCM (even if you flash back to stock) and possibly deny warranty coverage?

Thanks for the clarification. You had me really worried!

What scares me the most is the OPs statement that he did 2 filter only changes at recommended intervals. Unless you are running a bypass system there is no way you should let you oil go that long. Even with a bypass system I'm not sure if it's a good idea. Have you ever set a sample in for analysis?

+1 above. Problems like this with the 6.0 are rare. Search this and other boards. Sounds like you just got a bad one.

How does it work with the backup camera? Does it wash it out?

They look really bad ass! If I were putting this on my gasser I might just block the scoop off and not mess with the underside ducting. The stock intake breathes more air that the engine can use. Unless you add forced induction there is no need for increased air flow.

Brand new Denali cluster for $212.00. https://www.gmpartsdirect.com/oem-parts/gm-instrument-cluster-84054173/?c=Zz1lbGVjdHJpY2FsJnM9aW5zdHJ1bWVudHMtYW5kLWdhdWdlcyZpPSZyPSZhPWdtYyZvPXNpZXJyYS0yNTAwLWhkJnk9MjAxNyZ0PWRlbmFsaSZlPTYtMGwtdjgtZmxleA%3D%3D

Been a GM guy my whole life. I won't say I'd never own a Ford truck but the chances are pretty slim. I know and agree that specs aren't everything but it is the only metric we have to measure with. We hope that the manufacturers use a standardized series of test to come up with the specs that they publish. In our world, numbers sell. Everyone wants the most HP, TQ, Towing or whatever. That being said, this is what I pulled from each mfg's towing guide. 2017 F250 CC 4WD SB 6.2L 3.73 = 12,500lb conventional towing 4.30 = 15,000lb conventional towing 2017 Chevy 2500HD CC 4WD SB 6.0L 3.73 = 9,600lb conventional towing 4.10 = 13,000lb conventional towing The 3.73 is only available to fleet owners. Like you said, the F250 with the 3.73 is rated to tow almost as much as the 2500HD with the 4.10 gears. I didn't do the math but I'm pretty sure having a 4.30 gear in the 2500HD would get you to about 14,000lb.

My last tank of E85 netted me 11mpg with a 50/50 split of city/hwy. I filled up with E10 (regular unleaded) about 3 days ago. Took 32 gallons so there was a little bit (12.5%) of E85 left in the tank. My mileage is up to 13.6mpg so far. Next tank of E10 should be better as most of the E85 will be gone. Almost ready for my first oil change too. Mobil 1 5w30 is going in.