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What type of gas yall use


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Double post.

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My truck is equipped just about the same and don't get anywhere near that mileage for an average. I have noticed that my truck does get it's best fuel economy right there around 55 mph too though. I just don't spend much time at that speed.

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I have a GMC 5.3 Z71 4x4 with 3.42 gears. I get 21.5-22 MPG overall per tank average all day, every day on 87 octane. UNTIL winter, then it goes down to about 19-21 on winter blend gas, and last years winter. Last winter was the coldest, longest, snowiest winter we have had in 30-40 years, so I hope to improve at least 1 MPG overall in a normal winter on the winter blend gas.

 

I live 2.5 miles from the nearest pavement, and most of my driving consists of back and forth to work 55 miles round trip. Drive through 2 small towns on the way, and 55 MPH on the highway with a traffic light at the half way point on the rural 2 lane highway between the two towns, and 5 stop signs each way. I easily get 24+ MPG on the 19 mile stretch between the two towns, with the traffic light at the mid-way point.

 

I just got back from a 3,800 mile trip out West to and through the Rockies. When it was all said and done, I ended up with 21.9 MPG overall.

 

THAT is awesome!

 

I've noticed the difference in cold weather too.

Couldn't get any good concrete numbers as the truck was new in March and it was the end of winter here.

Posted

 

THAT is awesome!

 

I've noticed the difference in cold weather too.

Couldn't get any good concrete numbers as the truck was new in March and it was the end of winter here.

 

It's because cold air is more dense. So you get more air in the same volume of space into the engine. Of course more air means more gas needed for a proper air/fuel mixture which then means lower gas mileage. The more air and fuel is also the reason why in cold weather it feels like the car or truck has more throttle response.

 

I got mine back in April so like you I haven't had chance to drive it in the winter yet. This is also the 1st truck I've had (only owned Chevy trucks) that has remote start so that will make it much easier to let it warm up and all lol.

  • 2 weeks later...
Posted

Just got my truck and i'm getting about 18-19mpg highway mileage running 87 octane from kroger.... little worse than i expected... Its stock height, 5.3, 3.42 gears 22inch gm wheels, crew cab 4x4

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