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Questions About The 6.2 Engine - 6.2 Owners Please Comment

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dasimmon Enthusiast

dasimmon

Posted
Posted

I pull 3100 pounds every weekend. Is the 6.2 adequate for that or should I be in a diesel?

6.2 will handle that with ease

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Krusty Enthusiast

Krusty

Posted
Posted

Laura GMC has like 500 6.2 SLTs starting at like 43k....Seems like a sweet deal.

 

 

Web site says 220 with 6.2L - 895 new 1500's total - but crimany - Who has stock like that - Fly in - Drive home!

 

http://www.laurabuickgmc.com/VehicleSearchResults?search=new&make=GMC&model=Sierra+1500&bodyType=&trim=&series=&minYear=&maxYear=&minPrice=&maxPrice=&vehicleType=

 

Engine

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:eek:

RUSSH Enthusiast

RUSSH

Posted
Posted

 

 

Web site says 220 with 6.2L - 895 new 1500's total - but crimany - Who has stock like that - Fly in - Drive home!

 

http://www.laurabuickgmc.com/VehicleSearchResults?search=new&make=GMC&model=Sierra+1500&bodyType=&trim=&series=&minYear=&maxYear=&minPrice=&maxPrice=&vehicleType=

 

Engine

icon_plus.gif icon_minus.gif

 

 

:eek:

Wow! There's not even 220 in all of Houston.

GNICK2017 Enthusiast

GNICK2017

Posted
Posted

Would you pick the 6.2 over a Duramax?

I just sold a 2011 LML and it was a beast. If you are towing daily with heavy loads you can not beat the Duramax. The 6.2 is a different beast. I have not towed yet be some other guys can chime in on that.

 

 

Sent from my iPhone using Tapatalk

blwright Enthusiast

blwright

Posted
Posted

I pull 3100 pounds every weekend. Is the 6.2 adequate for that or should I be in a diesel?

You can probly pull 3100 with a minivan.

 

Laura GMC has like 500 6.2 SLTs starting at like 43k....Seems like a sweet deal.

That's where my 6.2 came from.

 

dasimmon Enthusiast

dasimmon

Posted
Posted

Laura GMC has like 500 6.2 SLTs starting at like 43k....Seems like a sweet deal.

wish these deals were in georgia!

396_425 Enthusiast

396_425

Posted
Posted

If you're not using 91+ in the L86 6.2L you are ****ing up your engine! Stop telling people it's okay.

Try reading the 2017 GMC Owner's Manual...I don't see where it says it will lead to "****ing up your engine." Information below is straight out of the book.....

 

For the 6.2L engine, premium

unleaded gasoline meeting ASTM

specification D4814 with a posted

octane rating of 93 is highly

recommended for best performance

and fuel economy. Unleaded

gasoline with an octane rated as low

as 87 can be used. Using unleaded

gasoline rated below 93 octane,

however, will lead to reduced

acceleration and fuel economy.

If knocking occurs, use a gasoline

rated at 93 octane as soon as

possible, otherwise, the engine

could be damaged. If heavy

knocking is heard when using

gasoline with a 93 octane rating, the

engine needs service.

'01LS1 Senior Enthusiast

'01LS1

Posted
Posted

Try reading the 2017 GMC Owner's Manual...I don't see where it says it will lead to "****ing up your engine." Information below is straight out of the book.....

 

For the 6.2L engine, premium

unleaded gasoline meeting ASTM

specification D4814 with a posted

octane rating of 93 is highly

recommended for best performance

and fuel economy. Unleaded

gasoline with an octane rated as low

as 87 can be used. Using unleaded

gasoline rated below 93 octane,

however, will lead to reduced

acceleration and fuel economy.

If knocking occurs, use a gasoline

rated at 93 octane as soon as

possible, otherwise, the engine

could be damaged. If heavy

knocking is heard when using

gasoline with a 93 octane rating, the

engine needs service.

 

You are probably getting away with it due to the higher elevations & do remember NM among others out west having lower octane fuels across the board. Like 85 was the base fuel where as in IL it is 87.

Am sure there is technical data somewhere showing reduced engine knock at higher altitudes or have read it in the past.

'01LS1 Senior Enthusiast

'01LS1

Posted
Posted

I have my interest peak in a new Chevy 6.2. I currently have a 2015 Silverado with 5.3. and 6 speed. Now to my questions....

 

Is the 6.2 with 8 speed better at towing than the 5.3 with 6 speed? Will it get better MPG towing than 5.3?

 

I hear the 6.2 needs to run on premium fuel. No one in my area sells 91 octane or E85 so I'm stuck with 93 octane. Is the 6.2 worth 50 cents for a gallon? I can buy diesel cheaper so why not a diesel?

 

Is it worth trading in the 2015 for? Would probably be looking at $20 Grand to trade.

 

You can use an app like gasbuddy or a website to shop around fuel prices. There is generally almost $.50 cents a gallon difference among premium fuels in my area & always try to use top tier fuels as well.

But comparing gas prices for 6.2 to diesel in the 6.6 is not an apples to apples comparison for the average buyer.

 

http://www.toptiergas.com/why/

Silver ice 6.2 Senior Enthusiast

Silver ice 6.2

Posted
Posted

Try reading the 2017 GMC Owner's Manual...I don't see where it says it will lead to "****ing up your engine." Information below is straight out of the book.....

 

For the 6.2L engine, premium

unleaded gasoline meeting ASTM

specification D4814 with a posted

octane rating of 93 is highly

recommended for best performance

and fuel economy. Unleaded

gasoline with an octane rated as low

as 87 can be used. Using unleaded

gasoline rated below 93 octane,

however, will lead to reduced

acceleration and fuel economy.

If knocking occurs, use a gasoline

rated at 93 octane as soon as

possible, otherwise, the engine

could be damaged. If heavy

knocking is heard when using

gasoline with a 93 octane rating, the

engine needs service.

Well.... it doesn't say anywhere on there I can't use tap water... guess what I'm doing on my next fill up.

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted

Well.... it doesn't say anywhere on there I can't use tap water... guess what I'm doing on my next fill up.

Go with bottled water, higher octane. Next Mustang encounter, try Jolt cola.
NWI Denali Enthusiast

NWI Denali

Posted
Posted

Why would I put higher octane in if it's not necessary? I've had 7 years of experience with this combination and absolutely zero problems; my elevation is 4000' which probably helps some with octane requirements.

You realize the L86's compression ratio is 11.5:1, right? Sure, you can run 87 in a pinch if you are in the desert where they don't have premium. Your knock sensors will adjust and your ecu will pull timing. You are sacrificing power big time. I agree with the guy who said you're neutering your engine.

firecat_30 Enthusiast

firecat_30

Posted
Posted

i have had 4 of these 6.2's now, 2011/2013/2015/2017. Before that i had 2 of the 5.3's, and my gf has a 2017 with the 5.3. i love the 6.2 especially the 2017 with the updates to the transmission and how smooth it is. The 2015 first year 6.2 with 8 speeds are a little clunky in shifting but the motor is nice. Everyone keeps comparing the 8 speed and 6.2 to the 6 speed 5.3? Starting in 2017 the 5.3 gets the 8 speed transmission also as long as u are in SLT or denali truck packages so if u get a 2017 the 2 engines will be very close in Fuel mileage because they both have the same transmission. My 6.2 gets 20-21 on the highway all day at 75+ but so does my gf's 2016 5.3 with the 8 speed so im not gonna tell u one is better then other in fuel mileage.. The 6.2 is using premium no matter what anyone says (RUN PREMIUM.) If u dont wanna run premium buy the damn 5.3, it pulls just fine and gets great gas mileage and has the 8 speed anyways..? If u wanna have some extra power to play with and if your towing 6000-11000 pounds then get the 6.2. If your towing 2000-4000 lbs u arnt using either truck enough to even notice a difference when it comes to 2017 5.3 or 6.2 both with 8 speeds. Hope that helps, and good luck.. If your in the midwest try out Miller Auto Plaze in St. Cloud MN, under 54000 for a denali ultimate depending on color.

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