Realistic mpg's

[Aaron1085]

My air pressure was set at 34 all around the other day at the dealer. This time of year in New England I'll let the truck sit a day or 2 in my garage and they'll be down to 31-ish upon start up. Normal fluctuation?

 

I'm around 15.9 with 80% town driving. I've tried driving just in 2WD as opposed to Auto as someone suggested that would help. Tried that for a few tanks, but no real movement of the MPG meter.

 

 

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[slee3247]

My air pressure was set at 34 all around the other day at the dealer. This time of year in New England I'll let the truck sit a day or 2 in my garage and they'll be down to 31-ish upon start up. Normal fluctuation?

 

 

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Sounds normal. We get customers in all the time right around this time and their tires are down 5-10 pounds on average.

[SouthernSilveradoGuy85]

My air pressure was set at 34 all around the other day at the dealer. This time of year in New England I'll let the truck sit a day or 2 in my garage and they'll be down to 31-ish upon start up. Normal fluctuation?

 

I'm around 15.9 with 80% town driving. I've tried driving just in 2WD as opposed to Auto as someone suggested that would help. Tried that for a few tanks, but no real movement of the MPG meter.

 

 

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Ya pretty normal, but for me it's weird because it seems to always be just 1 tire that falls like that. The others won't budge or not enough to notice.

['17 Sierra]

14/21, average 16 but I've only got 800 miles on the truck. 5.3 8 speed.

[Aaron1085]

 

Sounds normal. We get customers in all the time right around this time and their tires are down 5-10 pounds on average.

Once I drive they'll warm up but I just find it interesting I'll lose 4lbs or so of air consistently while it sits. I don't know .... [emoji57]

 

 

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[silveradosid]

now that i have bfg k02 on my 2014 5.3 with 3.08gears, this truck is not any better on fuel than my 2006 was. a 10 degree temperature drop will deop your pressures 4 lbs. i have a fleet of trucks that run from canada to florida, it is the hardest thing to do is find a happy medium for tire pressures going from the cold to the hot all the time.

[powerhaulic]

'17 crew 6.2 3.42

stock tire size

warm weather was 17.5ish town 22.3 highway

winter 15.3 i

around town 20 highway

5800mi on it now

[Knotsure]

The lifetime average on my 14, 5.3 4x4 is 16 mpg. I do drive 45 miles one way to work but there are lights and I live in the hill country so the hills mess with my mpgs.

 

 

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[5Horizons]

According to the computer in the truck, which is a bit optimistic I believe, I am averaging 20.4 all time. Last 400 miles is 19.0 with a best of 21.9.

Regular Cab 4x4, 5.3, 3.42 gears. No mods. I was hoping for better, but it looks like I'm doing better than most.

[SirenRed16]

2016 Silverado RC 5.3 3.42, 25 miles one way commute to work primarily a 55 mph zone with a couple stops along the way just did 18.6 mpg. Truck is stock with no mods.

[Havvkeye]

35 is actually low for a full size truck. I had factory Goodyear SRAs on my '14 5.3 and always kept it above 40, usually was between 40 and 45.

 

For the factory SR-A the recommended is 32psi.

[SouthernSilveradoGuy85]

 

For the factory SR-A the recommended is 32psi.

 

And the tires look flat when they're that low. Max psi is 50 and never had any problem keeping them between 42 and 45.

[amxguy1970]

35 is actually low for a full size truck. I had factory Goodyear SRAs on my '14 5.3 and always kept it above 40, usually was between 40 and 45.

 

Says who? Just because you have yours cranked up doesn't mean that is right. For a p-rated tire running around near max psi is too high. Just going by look is wrong and is not a better way to figure out where to run versus tire engineer recommendations.

 

Tyler

[amxguy1970]

now that i have bfg k02 on my 2014 5.3 with 3.08gears, this truck is not any better on fuel than my 2006 was. a 10 degree temperature drop will deop your pressures 4 lbs. i have a fleet of trucks that run from canada to florida, it is the hardest thing to do is find a happy medium for tire pressures going from the cold to the hot all the time.

 

False

 

Tyler

[Marv88]

I have a 2016 regular cab short bed 5.3 6 speed with 3:08 gears, 305/40r22 tires (35 psi front and 32 psi rear cold with no load) and about 2500 miles. 95% + driving is short trips around town and last I checked average was around 12mpg. Can't remember what it's "supposed" to get since mileage wasn't a big concern due to the amount of driving I do (3-400 miles per month)