Tire advice for trucks with 6.2

[Lgetz]

My experience  with Toyo Open Country AT2 size  295/55/20 on 2014 All Terrain 6.2 was positive.   Only had them on for 9K miles before trading  truck for the 2015.  Was surprised  that the tires chirped hard on 1st moderate throttle application.  Otherwise traction in rain was good and  didn't notice much difference in drive or fuel economy  compared to stock tires.  Current 2015 6.2 has Toyo Open Country RT size 33x12.50x20 and tires feel heavier and drop in fuel economy is noticeable.  Looks wise the RT wins hands down over the AT2s.

In no particular order tires you might consider are:

Michelin AT2 or Defender M/S

Toyo Open Country AT2

Hankook Dynapro  ATm-RF10

Continental TerrainContact AT

Cooper Discoverer AT3 or ATP

BF Goodrich All Terrain KO2

Yokohama Geolander AT

Bridgestone Dueler AT Revo 3

 

These all seem to show decent wear and good traction.  YMMV

Lots of luck with whichever you decide on. 

 

[SkiDooNick700]

While I have no long term experience with this tire as I literally got it 2 weeks ago, I just put on P275/60/R20 Falken Wildpeak AT3W.  It's a really good looking tire and has a great looking side, similar to the BFG KO2.  They ride nice too, my truck rides nicer and absorbs bumps better than it did with the 275/55 Goodyear LS2s.  I also have a ProComp 2.25" leveling kit.

 

Although it is like less than 10 lbs heavier than the stock tire, I do notice the added "strain" on the engine.  I do not go into V4 quite as much as I did previously on my regular drive to work.  I also noticed braking is a bit worse with the added weight.  I could only imagine an LT / E tire being worse!

 

you can see pics of this setup here: 

https://www.gm-trucks.com/forums/topic/209992-pics-of-leveling-kits-with-stock-wheels/?do=findComment&comment=2260450

[14 gmcl83]

On my 14 GMC Sierra 5.3 I did 275/60/20 k02 they ride good and with my 3.42 I can still smoke the tires but I also did a few mods .next is headers exhaust tune then I’m done .

[tyler.frost92]

Im running 305.50.20 on my 6.2 with 20x10 wheels. Didnt notice much of a change in mpg or power 

[L86 All Terrain]

I don't know how you guys think these trucks are that good on gas, they aren't. Mine was pretty good on the stock bologna skins, but as soon as I put a Pro Comp AT  E load 33"x12.5"xR20 it took a dump. My 6.2L achieved a best of 23.7mpg on its maiden voyage home according to DIC, but it was realistically more like 20. It commonly runs around 13.5L/100km or 17.55 USMPG, when converted from computer estimate to reality, that works out closer to 16.5mpg. This is driving at a 45mph average of low speed highways and town streets, this is the speed that these things shine in terms of economy. As soon as my 6.2L hits 67mph+ your economy takes a huge hit and I get closer to 15mpg on the highway at 70mph. People claiming they cruise at 70mph on a freeway with a 6.2L on 35's and get 24mpg need to walk away from the crackpipe. 

[Cjc16]

41 minutes ago, L86 All Terrain said:

I don't know how you guys think these trucks are that good on gas, they aren't. Mine was pretty good on the stock bologna skins, but as soon as I put a Pro Comp AT  E load 33"x12.5"xR20 it took a dump. My 6.2L achieved a best of 23.7mpg on its maiden voyage home according to DIC, but it was realistically more like 20. It commonly runs around 13.5L/100km or 17.55 USMPG, when converted from computer estimate to reality, that works out closer to 16.5mpg. This is driving at a 45mph average of low speed highways and town streets, this is the speed that these things shine in terms of economy. As soon as my 6.2L hits 67mph+ your economy takes a huge hit and I get closer to 15mpg on the highway at 70mph. People claiming they cruise at 70mph on a freeway with a 6.2L on 35's and get 24mpg need to walk away from the crackpipe. 

And this is why I started the thread and what I was looking for! Lol  Like I said, I have the original tires and I’ve been very satisfied with the mileage considering it’s a truck. With the amount of 55mph hwys I run in Arkansas, it’s very good. I’ve noticed the same thing after 65mph. There is a significant decline. I’ve had many vehicles in my life and there is no doubt tires make a huge difference, and primarily the major factor that determines the performance changes with both power and mileage is the major width change. I think the rolling resistance hurts both take off and mileage, then you’ve also got increased wind resistance when you add nearly 2” in width on each tire. I will most like like go with the 275/60r20 to minimize my losses. 

[bayouguy71]

On 6/12/2019 at 3:30 PM, Lgetz said:

My experience  with Toyo Open Country AT2 size  295/55/20 on 2014 All Terrain 6.2 was positive.   Only had them on for 9K miles before trading  truck for the 2015.  Was surprised  that the tires chirped hard on 1st moderate throttle application.  Otherwise traction in rain was good and  didn't notice much difference in drive or fuel economy  compared to stock tires.  Current 2015 6.2 has Toyo Open Country RT size 33x12.50x20 and tires feel heavier and drop in fuel economy is noticeable.  Looks wise the RT wins hands down over the AT2s.

In no particular order tires you might consider are:

Michelin AT2 or Defender M/S

Toyo Open Country AT2

Hankook Dynapro  ATm-RF10

Continental TerrainContact AT

Cooper Discoverer AT3 or ATP

BF Goodrich All Terrain KO2

Yokohama Geolander AT

Bridgestone Dueler AT Revo 3

 

These all seem to show decent wear and good traction.  YMMV

Lots of luck with whichever you decide on. 

 

I have the 5.3 and I ended up with the new version of the DynaPro ATM's (RF11 / AT2) in 275/60 R20 and couldn't be more pleased with them.

Quiet and smooth and still look a little sporty on my Redline.

My wife has the Falkens on her Grand Cherokee and they are a tad louder than mine.

 

[SILVER SLED]

1 hour ago, bayouguy71 said:

 

I have the 5.3 and I ended up with the new version of the DynaPro ATM's (RF11 / AT2) in 275/60 R20 and couldn't be more pleased with them.

Quiet and smooth and still look a little sporty on my Redline.

My wife has the Falkens on her Grand Cherokee and they are a tad louder than mine.

 

Nice truck. Do you have a close up pic  of the new DynaPros?  I have the old RF10 and like them, but have a feeling they won't be around when I need tires next. 

[bayouguy71]

18 hours ago, SILVER SLED said:

Nice truck. Do you have a close up pic  of the new DynaPros?  I have the old RF10 and like them, but have a feeling they won't be around when I need tires next. 

Here you go.

[L86 All Terrain]

22 hours ago, Cjc16 said:

And this is why I started the thread and what I was looking for! Lol  Like I said, I have the original tires and I’ve been very satisfied with the mileage considering it’s a truck. With the amount of 55mph hwys I run in Arkansas, it’s very good. I’ve noticed the same thing after 65mph. There is a significant decline. I’ve had many vehicles in my life and there is no doubt tires make a huge difference, and primarily the major factor that determines the performance changes with both power and mileage is the major width change. I think the rolling resistance hurts both take off and mileage, then you’ve also got increased wind resistance when you add nearly 2” in width on each tire. I will most like like go with the 275/60r20 to minimize my losses. 

The width of my tires is a big issue effecting mileage, they are over 20lbs heavier per corner and 2" tall and 2" wider than stock. They soak up the power, and they are useless in wet conditions or snow. 2wd driving in snow is impossible with my tires, but the 12.5" are absolute beasts on dry pavement, I could probably almost keep pace with a V6 Camaro around a track if I had a trac bar/4 link in the rear. A 275 is a great choice if you want to retain the stock-like behaviors, the width wont murder your mileage. You could go to a 285 without huge losses. I would recommend abandoning a P series tire for a LT C or D load if you tow or go offroad, P rated tires I wouldn't put on anything that left pavement. Big wheels also adds a lot of weight to the corners, in the future I would like to get away from my 20" and go back to 18"'s. 

[truckguy82]

23 hours ago, L86 All Terrain said:

I don't know how you guys think these trucks are that good on gas, they aren't. Mine was pretty good on the stock bologna skins, but as soon as I put a Pro Comp AT  E load 33"x12.5"xR20 it took a dump. My 6.2L achieved a best of 23.7mpg on its maiden voyage home according to DIC, but it was realistically more like 20. It commonly runs around 13.5L/100km or 17.55 USMPG, when converted from computer estimate to reality, that works out closer to 16.5mpg. This is driving at a 45mph average of low speed highways and town streets, this is the speed that these things shine in terms of economy. As soon as my 6.2L hits 67mph+ your economy takes a huge hit and I get closer to 15mpg on the highway at 70mph. People claiming they cruise at 70mph on a freeway with a 6.2L on 35's and get 24mpg need to walk away from the crackpipe. 

Wow i’d take my tires off if I got 15mpg at 70.

 

My stock truck hits it’s mpg records at 65-70mph.

 

I had cruise on exactly at 69mph for about 40 miles and it came back at 26.xmpg. I had windows up and AC on. Stock 6.2

 

this is traveling from the jersey shore to near philly, so if there was any elevation change it was going uphill.

 

if you’re getting 15 that’s nuts

[SILVER SLED]

3 hours ago, bayouguy71 said:

Here you go.

 

Thanks, I like them.  Kinda torn between them and Goodyear Wrangler Trail Runners. 

 

[L86 All Terrain]

On 2019-06-19 at 9:04 AM, truckguy82 said:

Wow i’d take my tires off if I got 15mpg at 70.

 

My stock truck hits it’s mpg records at 65-70mph.

 

I had cruise on exactly at 69mph for about 40 miles and it came back at 26.xmpg. I had windows up and AC on. Stock 6.2

 

this is traveling from the jersey shore to near philly, so if there was any elevation change it was going uphill.

 

if you’re getting 15 that’s nuts

Really eh? Would be interesting to see some fuel receipts and trip odometer if you are confidently getting 26+ MPG at 70mph, you would have a hard time getting a true 26mpg combined in a SS Camaro tbh. Are you still on the factory bologna skins? All rolling hills here, very little flat stretches, grades up to 20% but no mountain passes. It gets about 20 in the prairies. My truck does not like to go into V4 mode at those freeway speeds, that is why I see best economy in town driving, between 30 and 50mph when the AFM actually kicks in and the engine is loafing around 1400rpm. It's also all single lane here, so you are punching it to pass every single car which doesn't help anything. Maybe that concrete you guys use in the States has less rolling resistance than our asphalt lol. My 6.0L's lifetime average over the year was 12 us mpg, so I am not that disappointed with my 6.2L. I seemed to lose 1mpg after it got the reman 8L90e and doesn't want to stay in V4 as often anymore. I don't have a reason to lie about economy. I don't mind telling people the truth, GM doesn't pay me to talk up their products. 

[truckguy82]

7 minutes ago, L86 All Terrain said:

Really eh? Would be interesting to see some fuel receipts and trip odometer if you are confidently getting 26+ MPG at 70mph, you would have a hard time getting a true 26mpg combined in a SS Camaro tbh. Are you still on the factory bologna skins? All rolling hills here, very little flat stretches, grades up to 20% but no mountain passes. It gets about 20 in the prairies. My truck does not like to go into V4 mode at those freeway speeds, that is why I see best economy in town driving, between 30 and 50mph when the AFM actually kicks in and the engine is loafing around 1400rpm. It's also all single lane here, so you are punching it to pass every single car which doesn't help anything. Maybe that concrete you guys use in the States has less rolling resistance than our asphalt lol. My 6.0L's lifetime average over the year was 12 us mpg, so I am not that disappointed with my 6.2L. I seemed to lose 1mpg after it got the reman 8L90e and doesn't want to stay in V4 as often anymore. I don't have a reason to lie about economy. I don't mind telling people the truth, GM doesn't pay me to talk up their products. 

My average mpg in my 6.2 is 10.2mpg. I drive mostly urban and suburban.

 

but I do infact get 26.8mpg on a flat surface, in warm weather, with cruise set on 69mph. It actually kept going higher until I got off the highway, might have even gotten a better number than that. I hardly ever duplicate it because I don’t drive long distances much and there usually is too much traffic when I do.

 

i have newish highway tire, mpg didn’t change from oem tire.

 

I rented a camaro ss for a week, amazingly it did not get much better mpg.

 

 

[L86 All Terrain]

2 minutes ago, truckguy82 said:

My average mpg in my 6.2 is 10.2mpg. I drive mostly urban and suburban.

 

but I do infact get 26.8mpg on a flat surface, in warm weather, with cruise set on 69mph. It actually kept going higher until I got off the highway, might have even gotten a better number than that. I hardly ever duplicate it because I don’t drive long distances much and there usually is too much traffic when I do.

 

i have newish highway tire, mpg didn’t change from oem tire.

 

I rented a camaro ss for a week, amazingly it did not get much better mpg.

 

 

So when we iron it out, our trucks probably obtain similar combined mileage. Our "city" has about 10 stop lights and stop signs off the main intersections. So it isn't really stop and go traffic like you would see in Jersey/NY, you typically cruise through town without stopping, large town with long roads. This is partly why my city mileage is so good. I put diesel truck tires on it so it demands a lot of gas trying to roll at 70mph. Hope the Camaro was fun, hard not to look at one with the prices they are charging right now, still looking for the right C6Z06 though.