2009-2013 6.2 vs 2014/15 6.2 help

[steveo2155]

I have decided in the somewhat near future I am going to look for a lightly used Silverado 1500 crew cab with the 6.2. I have some questions to help my search. Is there a huge difference between the 6.2 engine in the 09-13 vs 14-15? I thought I heard there is no afm in the 09-13 but there is in the 14-15...wouldnt that give the 09-13 6.2 a good plus over the 14-15? And in terms of build quality is the 14-15 much superior over the 09-13? Or would I still be getting a solid truck . With the 09-13? Also on ltz model are the backup camera in the dash or on the mirror on a 2013?

[newdude]

Big difference as they aren't the same engines. 2014+ up 6.2 is Gen V small block architecture. AFM, direct injection and makes 420hp 460 torque. 2009-2013 6.2 is without AFM and is Gen IV small block architecture, 403hp 417 torque. Both have VVT, the new one has more timing range over the old one. Both are all aluminum construction as well. Both run premium fuel, but the 09-13 trucks are flex fuel (not sure if all years were or not though, I know 11-13 are). New one is 91+ only.

 

AFM vs. no AFM is a never ending debate. You can always turn it off in the new trucks. Both generations had either 3.42 or 3.73 (max tow) gearing available. The 6.2 got the 8 speed and different rear gears for max tow and non max tow trucks for 2015. 2014 are 6L80 and the 09-13 are 6L80.

 

Old body LTZ gets the backup camera in the mirror, while 2014+ are in the radio screen.

 

Me I'd have a hard time as the new trucks are much better as far as interior quality, design and materials vs. the 07-13 trucks but both are plenty powerful and fast. Oh and as far as oil changes go, you'd save some $$$ with the older trucks as they are a 6 quart system with 5w30 oil, where the new ones are 8 quart systems with 0w20 oil which tends to run a good bit more.

[crankman]

We got a 2011 6.2 with 3.73 6 speed no afm is a ripping beast of a truck. I drove it for 3 years now my son has it we both think its one of the best out there. Our backup cam is in the rearview mirror and it a LT. You would like it to drive I bet.

[RyanbabZ71]

 

 

but the 09-13 trucks are flex fuel (not sure if all years were or not though, I know 11-13 are

 

My 10 runs exclusively on E85

 

The one reason why I hesitate on the new trucks is I really like the L9H 6.2 V-8. Its a strong engine. Havent driven a new one yet.

[ChrisNJ]

I've owned both. '07 and '11 6.2-6sp-3.42's, and currently run a '14 6.2-6sp-3.42. To me they are night and day. I was always displeased with the shifting performance of the older 6.2. I believe that GM had to handcuff these drivetrains to meet CAFE requirements. Not to say, like above, that it didn't 'rip', but normal driving was not very good with constant downshifts to get it to move, and I believe it was because it upshifted way too early than it should have. Now with the '14 6.2, these shifting issues are gone, the truck is responsive, holds it shifts, downshifts when you expect it too, and is a pleasure to drive (for me), and 'rips' like you would never believe a truck ever could. And I believe, again, that now that GM had the direct injection, and much better mpg, they let the engineers make them shift better. Just my opinion, but I do indeed love the new 6.2, it makes me happy driving it. In fact it reminds me of my old Pontiac RamAirIII engine in a GTO I had a long, long time ago. Best of luck, but there is no comparison like driving both yourself. The only solid way to know.

I'm sorry I can't comment on the 6.2-8sp, but based on how good the '14-6sp is, and GM letting them run for a change, I can guess that it's probably a little better than the 6sp.

[George C]

We've run regular gasoline in our 15i' Yukon Denali with zero problems. The engine self adjusts timing when it senses lower octane, and to tell you the truth, I can't tell the difference. Performance and gas mileage seems the same, and there is no pre-ignition ever. So, don't let the cost of more expensive gasoline enter into the equation.

[Sooperdave]

The power under the curve of these Gen V engines are amazing. That's the big difference and it's noticeable. I would take a 14 up 5.3L NHT on E85 before I picked an older platform with the 6.2L. The trucks in general are just nicer as well which would swing my vote. Nothing wrong with the previous, just what I like.

[Badass69]

_{Yeah I would have to say that my 8 speed 2015 6.2 would have no trouble handing the ass to any L9H truck I ever drove..... and I drove 5 different ones. One was even a custom order max trailer extended cab I had that impressed me so ever thoroughly I left it on the lot and told the dealership to shove it lol. The torque on the Gen iV is the big kicker... I never found any L92 rectangular port headed engine impressive down low in rpm ( whether a 6.2 or a 6 liter as I had a few of both) whereas this Gen 5 makes great low and midrange power. I have pulled heavy with this 2015 and even with just 3.23's out back it just doesn't need to rev to hold speed up a grade with a load like the other engines did. Like said above the power curve on the Gen V is pretty awesome!}

[steveo2155]

Is the 6.2 available on 14/15 on the lt model? Seems like theyre all ltz...just wondering

[Badass69]

Nope. GM decided that the L86 is only available on LTZ/SLT trim levels and higher. Wasn't thrilled with that and would like to see them add the LT and SLE trim levels back in as an option myself.

[amxguy1970]

Big difference as they aren't the same engines. 2014+ up 6.2 is Gen V small block architecture. AFM, direct injection and makes 420hp 460 torque. 2009-2013 6.2 is without AFM and is Gen IV small block architecture, 403hp 417 torque. Both have VVT, the new one has more timing range over the old one. Both are all aluminum construction as well. Both run premium fuel, but the 09-13 trucks are flex fuel (not sure if all years were or not though, I know 11-13 are). New one is 91+ only.

 

AFM vs. no AFM is a never ending debate. You can always turn it off in the new trucks. Both generations had either 3.42 or 3.73 (max tow) gearing available. The 6.2 got the 8 speed and different rear gears for max tow and non max tow trucks for 2015. 2014 are 6L80 and the 09-13 are 6L80.

 

Old body LTZ gets the backup camera in the mirror, while 2014+ are in the radio screen.

 

Me I'd have a hard time as the new trucks are much better as far as interior quality, design and materials vs. the 07-13 trucks but both are plenty powerful and fast. Oh and as far as oil changes go, you'd save some $$$ with the older trucks as they are a 6 quart system with 5w30 oil, where the new ones are 8 quart systems with 0w20 oil which tends to run a good bit more.

 

Our 2012 Yukon Denali with the 6.2 has AFM. Did the trucks not get that or was it only certain year? The 6.2 is that feels strong, stronger than our '14 5.3 3.42 truck (but not by a huge difference). Maybe I will get a chance to line them up sometime and see.

 

Either way both are great motors OP, yes the new ones make more power and have the nicer interior (exterior is subjective to that person) but they are more expensive. Up to you which route do you go? If you have a set budget you can get more truck with less miles than a new 14+ but it is an older style vehicle. Roughly the new 6.2 is in the mid to upper 5's 0-60, old 6.2 is in the low 6's 0-60 and new 5.3 upper 6's 0-60 is that matters.

 

Tyler

[redwngr]

Starting in 15, the 6.2 is mated with an 8 speed (and 3.23's standard or 3.42's for max tow)

 

(Starting in 16, the slt/ltz and above with the 5.3L also get the 8 speed with 3.42's for standard and for max tow)

[RyanbabZ71]

 

Our 2012 Yukon Denali with the 6.2 has AFM. Did the trucks not get that or was it only certain year? The 6.2 is that feels strong, stronger than our '14 5.3 3.42 truck (but not by a huge difference). Maybe I will get a chance to line them up sometime and see.

 

Either way both are great motors OP, yes the new ones make more power and have the nicer interior (exterior is subjective to that person) but they are more expensive. Up to you which route do you go? If you have a set budget you can get more truck with less miles than a new 14+ but it is an older style vehicle. Roughly the new 6.2 is in the mid to upper 5's 0-60, old 6.2 is in the low 6's 0-60 and new 5.3 upper 6's 0-60 is that matters.

 

Tyler

Truck and SUVs have different 6.2 engines

 

 

Ryan

[redwngr]

Truck and SUVs have different 6.2 engines

 

 

Ryan

Do you mean then or now or both?

[TJay74]

We've run regular gasoline in our 15i' Yukon Denali with zero problems. The engine self adjusts timing when it senses lower octane, and to tell you the truth, I can't tell the difference. Performance and gas mileage seems the same, and there is no pre-ignition ever. So, don't let the cost of more expensive gasoline enter into the equation.

 

It is not really a "self adjustment" of timing when you run 87 octane. There are 2 different timing maps, Hi octane and Low octane. If the ECM sees enough knock/detonation/KR events it drops down from the Hi octane map into the Low octane map. Then it has a decay cycle, once the decay cycle runs out it will go back up into the High octane map. The 5.3 trucks are notorious for have knock on 87 octane, I have recorded KR on my 6.2 even while running 91 octane.

 

Personally I wouldn't run 87 octane in the new engine, the $5 savings per each tank is not worth it.