AFM Newb question

[iras1976]

I don't know how 4 auto works. I do set it there when we get lite rains. It's kind of peace of mind for me. I throw it in 4 hi when the weather is shit along with the roads. Not sure how quick 4 auto will activate when I'm going +65mph and every second counts to react .

I've had 3 suburbans. 2011 z71 , 2013 LT3 and 2015 LT . I noticed that the newer gen suburban has a faster reaction in auto . I fishtailed really bad in the z71 once on an incline to a bridge when havin it in auto, because it reacted too slow . From then on I learned that if the conditions call for 4wd , just go all the way .

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[Beagleman]

I live in British Columbia, and drove a highways snow plow for 38 years, I saw MORE suv's in the ditch usually upside down from over driving the road conditions in 4WHEEL DRIVE than those who used auto 4x4 AND drove to the current road conditions. Also in winter DO NOT use all season tires, they are not conformed to winter road conditions or winter temperatures, get a good set of real winter tires, with lots of sypes and walnut shell, ( Toyo's ) and SLOW DOWN....... yes we can go BUT in 99% of the cases of going in the ditch or over the bank is, can you STOP???????...... if not , by going too fast on ****** roads, with all seasons in 4x4, well............... I will call the wrecker for you........... not being a smart ass here, just 38 years of seeing this stuff every day, and owning a 4x4 since 1980

 

[pt1965]

since yall are talkin gas mileage, i am a little dissapointed with my '10 z71 burbs gas mileage. i got 16mpg on a mostly interstate 180 mile trip running 75mph. my previous '02 would always get 14-16 with the old 4speed. but i had to do the math to figure it every once in while, since no computer, so maybe i'm getting a couple of mpg better? i was hoping for 20mpg on the interstate!

 

[PG01]

since yall are talkin gas mileage, i am a little dissapointed with my '10 z71 burbs gas mileage. i got 16mpg on a mostly interstate 180 mile trip running 75mph. my previous '02 would always get 14-16 with the old 4speed. but i had to do the math to figure it every once in while, since no computer, so maybe i'm getting a couple of mpg better? i was hoping for 20mpg on the interstate!

I wouldn’t trust the truck tbh, ill do the math every once and a while.

 

[swathdiver]

since yall are talkin gas mileage, i am a little dissapointed with my '10 z71 burbs gas mileage. i got 16mpg on a mostly interstate 180 mile trip running 75mph. my previous '02 would always get 14-16 with the old 4speed. but i had to do the math to figure it every once in while, since no computer, so maybe i'm getting a couple of mpg better? i was hoping for 20mpg on the interstate!

Slow down to 65 mph and you'll see 20-21 easy. At 75 mph mine gets 17 and it doesn't have VVT like yours does, good for at least 1 mpg.

Weight, wind, tires, fuel quality, road surface all come into play and affect mileage.

 

[iras1976]

since yall are talkin gas mileage, i am a little dissapointed with my '10 z71 burbs gas mileage. i got 16mpg on a mostly interstate 180 mile trip running 75mph. my previous '02 would always get 14-16 with the old 4speed. but i had to do the math to figure it every once in while, since no computer, so maybe i'm getting a couple of mpg better? i was hoping for 20mpg on the interstate!

Cruise Control also makes a big difference. The sweet spot is usually about 70mph . Keep those rpms as low as possible. What I do is I accelerate to about 70 mph give or take , and as soon as it switches gears and the rpms drop I hit the Cruise control , try it out . My record is 26.1 over a 50 mile stretch. I reset a couple of weeks ago and I'm at 23.4 right now

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[Mickey_7106]

I live in sunny California , so i personally can't afford to buy winter tires for the two weekends a year that i go to tahoe for the snow. I used to think that all terrains were great for wet and snow traction. In ran Toyo open country's on my Silverado and loved them. But it turns out that they dont compare to all season tires in wet or snowy conditions. Of course if i lived in an area that snowed, then I'll probably be forced to buy winter tires.

For those that are interested, this is a good read about all season vs all terrain tires. There are other similar articles on tirerack.com and YouTube https://www.officer.com/on-the-stre.../allseason-vs-allterrain-tires-for-police-ssv

I live in British Columbia, and drove a highways snow plow for 38 years, I saw MORE suv's in the ditch usually upside down from over driving the road conditions in 4WHEEL DRIVE than those who used auto 4x4 AND drove to the current road conditions. Also in winter DO NOT use all season tires, they are not conformed to winter road conditions or winter temperatures, get a good set of real winter tires, with lots of sypes and walnut shell, ( Toyo's ) and SLOW DOWN....... yes we can go BUT in 99% of the cases of going in the ditch or over the bank is, can you STOP???????...... if not , by going too fast on ****** roads, with all seasons in 4x4, well............... I will call the wrecker for you........... not being a smart ass here, just 38 years of seeing this stuff every day, and owning a 4x4 since 1980

 

[thompsoj22]

I live in sunny California , so i personally can't afford to buy winter tires for the two weekends a year that i go to tahoe for the snow. I used to think that all terrains were great for wet and snow traction. In ran Toyo open country's on my Silverado and loved them. But it turns out that they dont compare to all season tires in wet or snowy conditions. Of course if i lived in an area that snowed, then I'll probably be forced to buy winter tires.

For those that are interested, this is a good read about all season vs all terrain tires. There are other similar articles on tirerack.com and YouTube https://www.officer.com/on-the-stre.../allseason-vs-allterrain-tires-for-police-ssv

I was completely unaware that the "sipes" in allseason tires are designed to fill with snow and keep it there, Therefore providing snow on snow contact which improves traction.

 

[Beagleman]

I was completely unaware that the "sipes" in allseason tires are designed to fill with snow and keep it there, Therefore providing snow on snow contact which improves traction.

YES, Sypes are the best deal going, in winter they open up a little bit and pick up sand particles and help with traction, also they are EXCELLENT for summer use as well...... they run 30% cooler and last 20% longer, than unsyped tires, they run cooler because they open up the block a little bit and let the cool air in and doesn't 'melt' the tread block as quickly.....this is a true thing, I always make sure any tire I buy has lots of sypes, back in the day, we used to have a syping machine at work, and they used to do our big truck tires, the difference is amazing....

 

[BG1988]

since yall are talkin gas mileage, i am a little dissapointed with my '10 z71 burbs gas mileage. i got 16mpg on a mostly interstate 180 mile trip running 75mph. my previous '02 would always get 14-16 with the old 4speed. but i had to do the math to figure it every once in while, since no computer, so maybe i'm getting a couple of mpg better? i was hoping for 20mpg on the interstate!

hybrid or hybrid body kit if you want at lest 20mpg

I think it's more about the body kit that gives the extra mpg highway since the electric does nothing over a certain speed..

it has a lower coefferiont drag of 0.34 while the reg tahoe has 0.36 drag since a 6.0 is seeing 23hwy for it