V6 mpg - Chevy Colorado & GMC Canyon
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post #1 of 22 (permalink) Old 04-15-2017, 05:49 PM Thread Starter
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V6 mpg

Today, we took a 200 Mile drive on the highway on rolling hills type of terrain at 70 MPH. Filled the tank with 92 Octane fuel and here is what it got.

Along the way took these snapshots; not bad?




Last edited by Plateado; 04-15-2017 at 07:50 PM.
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post #2 of 22 (permalink) Old 04-15-2017, 06:25 PM
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Nice. Is the top with the 92 octane and the bottom with regular? Still good either way. I average around 24 on the highway but I also set the cruise at 75 and have 4wd and I exclusively use regular.

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post #3 of 22 (permalink) Old 04-15-2017, 06:40 PM
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Don't trust the DIC. Mine reads about 2 mpg better than actual calculated use.

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post #4 of 22 (permalink) Old 04-15-2017, 07:48 PM
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Not surprised I generally can beat the posted mileage..

I noticed with the 2017 The V4 mode reall adds to the mpg.

Also when you coast down hill get all off the gas as it shut off the flow for more mpg on DI engines.

I don' drive for mpg but If I can add without doing something annyoing I will try it.

So far my city driving is 18-19.5. I have a short freeway shot going to work of 3 miles and that is at 75 mph. The rest is stop and go. I am pleased so far.

My old Sonoma struggled to get 19 with the same gear and about 800 pounds less with 2/3 the power.
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post #5 of 22 (permalink) Old 04-15-2017, 07:49 PM Thread Starter
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I set the Trip A to 0 after fuelling up. So that is what I got and seems to par with is left on the tank. All the driving was done with 92 Octanes and NO Dafting; cruise set to 70 MPH, 5 under the posted limit. I thought it was 200 miles, the oddo read 184 at the end of the trip. If you noticed, at 144 Miles, the needle shows full.

I found out, the sweet spot is 45~50 MPH. Was hitting 30s at that speed on flat terrain, sometimes more. As said before, not bad for a truck, the speed and a gasser.


Anyway, just posting what the truck gave me.
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post #6 of 22 (permalink) Old 04-17-2017, 08:59 AM
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My 2015 SLT has given decent mileage from the git-go averaging 24.9+ in the good months and in winter with the crap gas at 22.9 . I have used my info center and actual mileage vs fuel consumed methods. I tend to drive very consertatively (received 97%) on the On Star monthly evaluation, and even in the 80 zones keep my speed at 70 and vehicle in the right lane while those on a tighter schedule can zip on by.
I Am Currently waiting delivery on a 2017 Denali with the V6 and eight speed transmission am hoping tÓme will bring in mileage a bit better than i get now. Only time will tell..

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post #7 of 22 (permalink) Old 04-25-2017, 10:06 PM
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With my 2016 Colorado WT V6 4x4, 25.0 is the highest 'best' value I've seen on last 50 miles screen. However, I noticed that since I've removed the air dam I haven't been able to get back to that. Since then 23.4 is the highest since removal and I've been trying to drive more 'eco' to see the higher MPG return - so far I can't get there.
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post #8 of 22 (permalink) Old 04-26-2017, 03:45 PM
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I took a trip just yesterday to drive someone to the airport and filled up just before and after arriving home. Total miles was 168 miles and it used 6.84 gallons or, about 24.56 MPG. Interstate road speed was between 65 and 75 MPH varying with traffic.

It was about 80% freeway, 8 miles of city with traffic lights, and about 40 miles of two lane state highway 55 to 60MPH.

The truck just turned over 1,000 miles on this short trip so the engine and drive train are not worn in yet.

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post #9 of 22 (permalink) Old 04-26-2017, 03:49 PM
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I'm pretty happy with the mileage I have been getting. I average around 20 in mixed driving. I only expect it to improve as the engine breaks in more. I have just over 2000 miles on the truck. I only use 87 octane tho, anything more without a tune, isn't worth it IMHO. I use almost exclusively Shell gasoline though. And here in Illinois its usually 10-15% ethanol.

All my 25, 50 and 450 mile averages are right around 20 mpg. My 25 and 50 mile average will shoot up once in a while when I go on a longer trip. But my 450 stays solid around 20mpg. My best for the 25 mile screen is around 29 mpg, by 50 mile best is around 25 mpg, and my 450 best is around 22 mpg.

I do find that my hand calculated mileage is about 1 mpg lower than the DIC shows. I reset the trip meter with every tanks and calculate my mileage using Fuely for each tank. Not a big deal being off by 1 mpg though, every car I've had with DIC has been off slightly.

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Last edited by fondupot; 04-26-2017 at 03:52 PM.
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post #10 of 22 (permalink) Old 04-26-2017, 08:55 PM
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Got a solid 18.5 to 19 on my normal daily route to work and home in mixed driving in my v6 2015 2wd. Have a new 17 Denali 4wd getting 16.5 now with 525 miles on it. I expect it to improve.
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post #11 of 22 (permalink) Old 04-27-2017, 05:43 PM
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Actually, with the variances you see with pumps, some shutting off sooner, some later, some allowing slow fill, some not, I think the DIC is more accurate in the short run. However, over 3-4 tanks or longer, then the manual calculation would be. IMHO.
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post #12 of 22 (permalink) Old 05-02-2017, 11:34 AM
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At 1600 miles I am getting 20.0 MPG average from my daily commute, about 15 miles of city/highway each way....have not gotten mine out for an extended highway run yet....mostly flat, but I do get held up at traffic lights a good bit on the way home.

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post #13 of 22 (permalink) Old 05-02-2017, 02:00 PM
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I average 21-23 depending how fast I drive mostly all interstate running 68-80 along with non crowded back rounds 45-60. My best over 50 miles is 26.7 according to DIC and it also records my best over the longest distance it shows as 24. something and I find the computer to normally be within half a gallon correct when I double check it with manual calculations.
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post #14 of 22 (permalink) Old 05-15-2017, 10:48 PM
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I must drive like a maniac because I avg about 19 mpg (sometimes worse) although all of my driving is local with many stops. Best I ever got was about 24 on a long highway trip driving 65-70. I don't believe the DIC either as the numbers never add up.

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post #15 of 22 (permalink) Old 05-16-2017, 12:48 AM
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Last tank was 22.5 MPG. Put in 23.2 gallons.

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post #16 of 22 (permalink) Old 05-16-2017, 08:26 AM
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This is on par with what I am getting as well. Last 200 mile trip to the mountains I got 22.5 on the way up and 25 on the way back going whatever the posted speed limit was which varied between 55 and 70 for most the trip.

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post #17 of 22 (permalink) Old 05-16-2017, 08:53 AM
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Just got my best this weekend. This is the most I have driven on one tank and the first time calculated mpg was almost equal to the DIC mpg. Put in 21.707 gallons and the calculated mpg was 25.11.


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post #18 of 22 (permalink) Old 05-16-2017, 09:13 AM
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I'm extremely satisfied with the mileage on my 2017 V6. I average right around 20mpg in mixed driving. I haven't had it out on the high very much, but it will do 24-25-26 no problem at 70 mpg if the conditions are right.

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post #19 of 22 (permalink) Old 05-17-2017, 08:13 AM
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I have only 300 miles on my Denali and the dash indiicator suggests 20.4 mpg I will randomally check mileage until i have a coup,le of thousand .miles on the vehicle and then begin watching in ernest.

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post #20 of 22 (permalink) Old 05-17-2017, 12:01 PM
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With just 1,410 miles on the odo, I filled up yesterday and hand calculated (346.5 miles / 15.4 gal = 22.5 MPG) . This agrees pretty closely with the DIC of 22.3 MPG.

This was a mix of about 70% city with many stops at stores, etc and 30% freeway/hwy driving.

Am satisfied with this MPG. It is as good or better than wife's 2015 Equinox LTZ with the 3.6L LFX V6 engine and 6-speed transmission.

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