Jump to content

Recommended Posts

Posted

I don't see what your complaining about here. Your MPG even on the highway isn't going to be over 20 mpg because of the hilly terrain in TN. Personally if I was getting almost 19 mpg on the highway in your area I'd be estatic.

Thing is, I'm in the same area as him and get considerably better fuel economy. I routinely see 23-25 avg on my last 25 mi on the DIC.

 

tnchevy, one other item that could be a difference maker is the wheels/tires combo. Mine has the standard 18s with the Goodyears.

Posted

Thing is, I'm in the same area as him and get considerably better fuel economy. I routinely see 23-25 avg on my last 25 mi on the DIC.

 

tnchevy, one other item that could be a difference maker is the wheels/tires combo. Mine has the standard 18s with the Goodyears.

What's your lifetime? The 25 mile range is worthless in my opinion. On mine with the 6.2L, lift and 35's I can get it to say 22mpg but I know that's not what I'm getting in reality.
Posted

My truck had 250ish miles on it when I purchased it. I reset the #2 Trip/fuel economy at that time. I have over 12k miles now and have not reset it. My lifetime average according to the DIC is 19.2.

My all time bests are posted above but they are pretty good too.

FWIW, I tow a boat to/from the lake and made that trip 2 times this weekend which is very hilly and nets me about 9mpg on that trip. I had about 1500lbs in the truck bed last week, twice.

My point is that I do use my truck on occasion and its not all hwy miles. Mostly, but not always.

I do check the DIC against the actual numbers at the pump and they line up really well.

Posted

My truck had 250ish miles on it when I purchased it. I reset the #2 Trip/fuel economy at that time. I have over 12k miles now and have not reset it. My lifetime average according to the DIC is 19.2.

My all time bests are posted above but they are pretty good too.

FWIW, I tow a boat to/from the lake and made that trip 2 times this weekend which is very hilly and nets me about 9mpg on that trip. I had about 1500lbs in the truck bed last week, twice.

My point is that I do use my truck on occasion and its not all hwy miles. Mostly, but not always.

I do check the DIC against the actual numbers at the pump and they line up really well.

A 19.2 mpg lifetime is great for hilly TN. I'm rocking about 13.5 mpg lifetime but I do about 95% city. I too have been impressed with how accurate the DIC is in the new trucks.
Posted

So far I'm getting around 11 mpg around town. I don't work that far from where I live (only about 5 miles round trip) plus I use the remote start for a couple minutes in the morning usually. And I get around 17 on the freeway. Considering it's the 6.2L with a 10" lift and 38" inch tires it's not too bad. Obviously I wasn't too concerned about gas mileage but it's a pleasant surprise when it gets a little better than I was expecting.

 

 

Sent from my iPhone 6+

Posted

Thing is, I'm in the same area as him and get considerably better fuel economy. I routinely see 23-25 avg on my last 25 mi on the DIC.

 

tnchevy, one other item that could be a difference maker is the wheels/tires combo. Mine has the standard 18s with the Goodyears.

I am running the stock 18's with stock good years. I have not touched my "trip 2" since I bought the truck and it says 19.5 mpg but it is about a mile per gallon off. My hand calculation has me at 18.8. I don't go by the 25 and 50 mile averages, they are useless. I have always got at the top of what the epa stickers say in every vehicle in my household but this one. 19 mpg is not bad but for all this extra technology I am not impressed compared to GM's trucks from 15 years ago. Once I put more aggressive and heavier tires (like my last truck that got 17.8 mpg) and take the air dam off I am sure I will be getting around 18 mpg or worse.

Posted

 

21f331eaa7d3dd522acce15e7fd2b730.jpg ive 33" tires on 20s the tuner help me out big time

Posted

So far I'm getting around 11 mpg around town. I don't work that far from where I live (only about 5 miles round trip) plus I use the remote start for a couple minutes in the morning usually. And I get around 17 on the freeway. Considering it's the 6.2L with a 10" lift and 38" inch tires it's not too bad. Obviously I wasn't too concerned about gas mileage but it's a pleasant surprise when it gets a little better than I was expecting.

 

 

Sent from my iPhone 6+

I'm right there with you.

Posted

So far I'm getting around 11 mpg around town. I don't work that far from where I live (only about 5 miles round trip) plus I use the remote start for a couple minutes in the morning usually. And I get around 17 on the freeway. Considering it's the 6.2L with a 10" lift and 38" inch tires it's not too bad. Obviously I wasn't too concerned about gas mileage but it's a pleasant surprise when it gets a little better than I was expecting.

 

 

Sent from my iPhone 6+

Damn, still getting 17 MPG on the freeway? What speed? And what gears do you have?

Posted (edited)

Damn, still getting 17 MPG on the freeway? What speed? And what gears do you have?

Between 70-75 mph. I'm not sure what gears. The dealer wasn't the one who installed them so they couldn't tell me for sure. At 70 mph it was running right around 1600 rpm on flat roads.

 

 

Sent from my iPhone 6+

Edited by Roidz
Posted

I am averaging about 18mpg in my truck since the weather started getting nicer. I don't count winter mileage at all. That's about 75% city, 25% highway

Posted

I'm averaging high 17s on my 5.3 4X4 CC. This is in plain flat south FL. When I take the highway though, I get it up to the 20-21 mark cruising at 70-75. Driving around town brings me down to 14-15 though, and I'm honestly not impressed at that. Makes me rethink my lifting plans. Granted, this is still better on my wallet than the BMW I used to daily before the truck.

Posted

I've noticed that if you put the truck in M6 you'll go into V4 more often. I have done this the last few days and noticed my mileage has gone up 2 MPG during my commute to work

  • Like 1
Posted

I left my trip B the same since I bought it Jan 2nd and it's currently at 17.4 mpg. I check every tank and DIC has been within .4 mpg on every tank but 1 ( it was off .9 on 1 tank for some reason). That's pretty good with a 6.2 and mostly cold weather driving.

Posted

I have a 2015 with the 6.2 8 speed and 3.23 gears I drive about 35 miles round trip a day and try to drive 65 depending on traffic and as long as I don't get on it to much and stay out of town I get 19.6 ( hand calculate ) witch is one less then what the DIC says and the best I have got is 20.3 hand calculated witch I think is good for the 6.2 considering my 09 5.3 only got 17 at best on the highway I don't know about the new 5.3 but I call bs on anything over 20 with 6.2. I drive very conservative when trying to get good MPGs. My wife has a 2012 equinox with the 2.4 rated for 31 mpg and she drives around 80 miles a day highway and only gets around 26 and only on long all highway trips has she seen 29 so for v8 truck compared to a 4 cylinder Ecco crossover I can't complain. I went from my 09 getting at most 330 or so miles when the fuel light comes to this truck around 420 when it comes

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,902
    Total Members
    8,960
    Most Online
    whenindoubtuseahammer
    Newest Member
    whenindoubtuseahammer
    Joined
  • Who's Online   2 Members, 0 Anonymous, 326 Guests (See full list)


  • Latest Articles

  • Posts

    • Its no wonder you've gravitated to the oil types and brands you have in later years after trying certain brands and one being a specialty oil or at least very hard to come by up here and the other would have been a commonly found oil of the era and the vastly different outcomes as a result to using the vehicles in question the same distance for an OCI . It shows what marketing hype can do without actually having the product to back up the claims and that is no different now with the insane claims that are written on the side of a bottle of oil from some of the off the shelf oils.    What has surprised me and I was already finding this out before I bought my truck with the GDI engine, that this newer fancy technology that seemingly would suggest better fuel economy/emissions with this high pressure spray of fuel is not in reality kind at all to the engine or at least the oils life. Yet they insist on claiming long OCI with this technology just like they did with the port or similar type fuel injection systems when in reality its a step back in oil life to have a GDI system.    I think the mistake your making Grumpy is that your not sending your samples to Blackstone and getting the feel good glowing report that you can run it another 1000 or more miles and then send another sample where they say run it yet another 1000 miles and on and on it goes until your sending in something that looks a lot like road tar and then they may suggest you change your oil within the next 1000 miles 😆
    • I am guessing that engines of that design back then had a better ability to be abused and survive longer than a new design engine with the long timing chain and the overhead cams and phasers etc. But I would never guess that an engine could go that far and not fail spectacularly or at least die a slow death. 
    • In the 80's 90's I'd run Honda's 7,500 miles between changes using Red Line HP 5W20 and do it for hundreds of thousands of miles with issues. Back in the day it was an SAE 20 with the HTHS of a SAE 30 and SN add load. It was also very polar. Oxidation VOA was over 120. Besides those motors were SPFI and lean burn tech. I could have likely run it longer but never did.    We had a Toyota bought new I ran on Pennzoil's latest and greatest synthetic of the day with "Penthane". A made up word for a very low dose of PAO. Tried 7,500 mile OCI's in that Group III/VI chemistry and the rings tapped out at 90K. Rocker box wasn't as bad as the one Punch put up but it wasn't good either. Also a SPFI motor.    I'm around 3,750 across the board on these GDI monsters and the oil it tapped out by then usually on TBN/TAN crossover and color. Red Line HP Euro.    The AMSOIL SS brochures tell you to follow the OEM values for the service class but that it can be run up to 25K if monitored. I can't imagine what motor could go that distance and not tap out. I've never owned one.    Yes, I know. Lot's of people do. I'm just not going to be one of them. 
    • I knew a guy in the early 80's that bought a new Monte Carlo and ran it a 100,000 miles without ever changing the filter or the oil. Just kept adding. It looked like that inside.     
    • Good evening. I was lucky enough to get passed down to me a 2007 GMC LBZ that was my great uncle's. While the underside and rockers are more or less gone I feel like with time I can restore it to working order since it only has 110,000 miles and he put nearly every option he could get without getting the new body style since he did not trust DEF. So far I have done everything I can think of but when I put the key into the ignition nothing happens. I put 2 brand new batteries in it. Cleaned the terminals. Check all the fuses and relays and they all pass with my multimeter. I know I'm missing something that I just cant think of. The only odd thing is the OBD2 port works which makes me think its not the mega fuse. Any advice would be greatly appreciated. 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...