ZR2 V6 gas mileage - Chevy Colorado & GMC Canyon
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post #1 of 69 (permalink) Old 06-14-2017, 10:17 PM Thread Starter
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ZR2 V6 gas mileage

So it's been about a week with my new ZR2 V6, and I admittedly don't drive much. My commute is less than a mile and I traded in my daily driver after 4yrs with 32k miles on it. I've been driving very averagely, and I'm returning under 13mpg. I honestly don't care since I drive so little, but what does a non-ZR2 get for gas mileage?!?
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post #2 of 69 (permalink) Old 06-14-2017, 10:29 PM
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Your short commute kills your mileage for sure. I drive mostly back country roads to work which is about 17 miles each way. Generally I get an average of 16-18 MPG. On the highway I can get up to about 22-24 MPG. There are some guys that are getting high 20's with their non-ZR2 V6 trucks.
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post #3 of 69 (permalink) Old 06-15-2017, 01:35 AM
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My 2015 4x4 V6 gave 24.9 average on my short runs and trips to town just 10 miles away (interstate). On long trips I have pushed 28-29 mpg (Montana, Wyoming, Colorado). My new 2017 has not been on any trips so far and normal driving is 23.2. I am not an aggressive driver as evidenced by the On Star report card grade last month 94 (whatever that means). The new V6 should give impressive results on my Texas trip next month will report back.

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post #4 of 69 (permalink) Old 06-15-2017, 05:09 AM
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Yeah well my 2016 V6 4x4 extended cab gets about 14 to 16 mpg around town. And 19 to 20 on the highway. So, your ZR2 sounds about right. If you really want to test what you can get, take it on the highway at 55 to 60 mph with the cruise control set on a flat road with no wind. Mine gets about 24 then. Those are perfect conditions and also driving way too slow for my tastes. It's very hard to believe that someone can average 28 or 29 mpg on a highway driving all day with a V6 4x4 truck. There are also people here that can put 25 gals of gas in their truck. The best I ever got, driving all day on the highway is 22mpg average, on Interstate 95 driving through multiple states for about 10 hours.

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post #5 of 69 (permalink) Old 06-15-2017, 07:00 AM
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I have not had a highway trip but in stop and go I have had a consistent 19.5. This is a 2017 crew V6.
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post #6 of 69 (permalink) Old 06-15-2017, 07:16 AM
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Just bought a ZR2 this past Sunday. Put about 200 miles on it so far. I drive 16 miles to work each way, probably 50% city/50% highway and am averaging roughly 18-19 mpg. If I'm easy on the throttle I can get closer to 22-24 mpg, but that's not very fun
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post #7 of 69 (permalink) Old 06-15-2017, 09:21 AM
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Originally Posted by OhioZR2 View Post
So it's been about a week with my new ZR2 V6, and I admittedly don't drive much. My commute is less than a mile and I traded in my daily driver after 4yrs with 32k miles on it. I've been driving very averagely, and I'm returning under 13mpg. I honestly don't care since I drive so little, but what does a non-ZR2 get for gas mileage?!?
That looks more like mileage you would get with a V8, hence why i think they should offer one in the ZR2...

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post #8 of 69 (permalink) Old 06-15-2017, 09:27 AM
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Yeah...the ZR2 is in the same lineage as the Raptor in that respect. I would not expect any more driving the truck on short jaunts. My twin has 3300 miles on it and the lifetime average is 20.3 mpg with the majority being driving around town. I get around 18 in the city and 24-25 on the highway with cruise control. My truck still has the air dam and no level or lift on it. I am running 265/65r17 Duratracs.

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post #9 of 69 (permalink) Old 06-15-2017, 09:28 AM
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If you're worried about gas mileage in a ZR2, you're doing it wrong. I'll trade you mine, I get 23 avg with a v6 4x4
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post #10 of 69 (permalink) Old 06-15-2017, 09:28 AM
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Quote:
Originally Posted by 4x4fan View Post
That looks more like mileage you would get with a V8, hence why i think they should offer one in the ZR2...

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I got better then that with my 2015 6.6 duramax 3500HD around town

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post #11 of 69 (permalink) Old 06-15-2017, 10:03 AM
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Depends on where you live, I am in Pittsburgh, a lot of hilly terrain. I average 22 to 24, without air dam, and I don't drive casually. I usually run around 70 mph on the highways. I tried driving casually for 1 tank of gas several months ago and averaged a little over 24. If I turn the Trifecta tune on and drive, I average anywhere from 19 to 21


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post #12 of 69 (permalink) Old 06-15-2017, 10:04 AM
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Less than a mile commute, I'd be walking, but that's me. Your short drive, the trim won't matter. Your numbers are what they are because the truck never warms up enough to exit open loop warmup mode, and presumably your speeds never get high enough for aerodynamics to become a factor. I have a four mile commute and my mileage is in the mid teens when I drive strictly in town for the same reason. I just get enough speed driving to nudge them up a bit.
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post #13 of 69 (permalink) Old 06-15-2017, 10:18 AM
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The bigger, heavier tires on the ZR2 really kill the gas mileage of that 3.6L V6. Especially with no change in gearing when compared to a regular Z71 or LT. So the 3.6L in the ZR2 needs to work a little harder to move those bigger heavier tires, thus netting less MPG. I think they should have offered a High Output version of the 3.6L for the ZR2, paired with some numerically higher rear end gearing to make it stand out from the rest of the twins. A souped up 3.6L making 330 hp, with 3.73 or 4.10 gears out back would be a lot more fun and might have gotten slightly better mileage.

In my 2017, I average around 20mpg in my normal day to day driving, which consists of country roads, and suburban roads between 30-60 mph.
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post #14 of 69 (permalink) Old 06-15-2017, 10:23 AM
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Originally Posted by fondupot View Post
The bigger, heavier tires on the ZR2 really kill the gas mileage of that 3.6L V6. Especially with no change in gearing when compared to a regular Z71 or LT. So the 3.6L in the ZR2 needs to work a little harder to move those bigger heavier tires, thus netting less MPG. I think they should have offered a High Output version of the 3.6L for the ZR2, paired with some numerically higher rear end gearing to make it stand out from the rest of the twins. A souped up 3.6L making 330 hp, with 3.73 or 4.10 gears out back would be a lot more fun and might have gotten slightly better mileage.

In my 2017, I average around 20mpg in my normal day to day driving, which consists of country roads, and suburban roads between 30-60 mph.


The ZR2 has 3.73's....

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post #15 of 69 (permalink) Old 06-15-2017, 10:25 AM
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The ZR2 has 3.73's....
Naw it still has 3.42's.

Here is a window sticker for a local ZR2...
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post #16 of 69 (permalink) Old 06-15-2017, 10:28 AM
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I bought my ZR2 for off-road use and never considered the fuel economy for the truck, as "fondupot" stated the aggressive tires and the lack of aerodynamics of this truck doesn't help the mileage. It would be nice to have better mileage but I bought the truck for a specific purpose. When off-road the mileage is going to be a whole lot less. As far as gearing Nitro Gear, is the only company at this time that makes differential gears for the Colorado and they are 4.56's. If you bought this truck to drive back and froth to work don"t expect good gas mileage.
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post #17 of 69 (permalink) Old 06-15-2017, 10:40 AM
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The bigger, heavier tires on the ZR2 really kill the gas mileage of that 3.6L V6. Especially with no change in gearing when compared to a regular Z71 or LT. So the 3.6L in the ZR2 needs to work a little harder to move those bigger heavier tires, thus netting less MPG. I think they should have offered a High Output version of the 3.6L for the ZR2, paired with some numerically higher rear end gearing to make it stand out from the rest of the twins. A souped up 3.6L making 330 hp, with 3.73 or 4.10 gears out back would be a lot more fun and might have gotten slightly better mileage.

In my 2017, I average around 20mpg in my normal day to day driving, which consists of country roads, and suburban roads between 30-60 mph.
The tires are not any bigger (still 31") and may be just barely heavier. The only thing that would cause MPG loss on the tires are the tread design. But even that won't cause much difference since it's a hybrid tire.
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post #18 of 69 (permalink) Old 06-15-2017, 10:55 AM
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The tires are not any bigger (still 31") and may be just barely heavier. The only thing that would cause MPG loss on the tires are the tread design. But even that won't cause much difference since it's a hybrid tire.
For comparisons sake:

The ZR2 comes with:
P265/65r17 - 30.6" overall diameter - Goodyear Wrangler Duratrac - 42 lbs each

A Z71 has:
P255/65r17 - 30.1" overall diameter - Goodyear Wrangler Adventure w/ Kevlar - 35 lbs each.

ZR2 tires are 1/2" taller, 10mm wider, and 7lbs heavier. So it does in fact have bigger, heavier tires, and wider, even if only slightly. It's still 7lbs more per wheel that the engine has to rotate.

Paired with the fact that it is 2" taller than a regular Colorado, and the front end is not as aerodynamic. So all these things make it less fuel efficient.

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Last edited by fondupot; 06-15-2017 at 12:17 PM.
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post #19 of 69 (permalink) Old 06-15-2017, 11:01 AM
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A bigger concern would be the abuse the engine and exhaust system is gonna take driving it under a mile a day, makes me cringe.

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post #20 of 69 (permalink) Old 06-15-2017, 11:09 AM
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Originally Posted by fondupot View Post
At 12:38 the GM engineer who helped design tthe Colorado claims they are 3.73's. Window sticker isn't always 100% accurate. Show me the placard in the glovebox. If it says GU6 it's 3.42, GT4 it's 3.73


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