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I was just curious what type of fuel mileage people are seeing going from winter to summer fuel blends for city driving.
 

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I put bigger tires on in November (just as winter fuel made its way here) needless to say, my mpg took a major dump. I'm hoping summer blend will help bump it back up a little.

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Discussion Starter · #5 ·
I step on the gas more in the summer, so I don't see any difference :)
OH.....I understand, I have a 510 HP GTO in the garage and it's NOT babied :D
 

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Discussion Starter · #7 ·

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I was just curious what type of fuel mileage people are seeing going from winter to summer fuel blends for city driving.
Probably 2-3mpg. The winter blend this year had me avg 18mpg my lowest. Just found some summer blend and getting improved mpg's.
 

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Probably 2-3mpg. The winter blend this year had me avg 18mpg my lowest. Just found some summer blend and getting improved mpg's.
Will the station know or tell you if they have summer blend?
How did you find out?
 

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My mpg dropped from 19 to 17 on the winter blend. I also dropped the aiir in my tires to 30 psi front 33 psi rear. In summer I run 36 psi.
 

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I lose about 2 mpg.
 

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I went from 13.8mpg this past winter to 15.9mpg so far this spring. That would be an increase of 2.1mpg by my awesome math skills.
 

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Will the station know or tell you if they have summer blend?
How did you find out?
My last tank's mpg's were higher than the tank before. Driving the same way. News station has stated the refineries are switching over to summer blend a couple of weeks ago.
 

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Discussion Starter · #17 ·
Took a 4 hour ride the other day and noticed approx a 2.2 mpg increase. Ever little bit helps :)
 

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More ethanol sucks more gas period. I think about 1/2 of the increase in mpg might be due to the increase in temps say 10 degrees winter to 50 degrees now. Cold sucks more gas than higher temps.

I once ran E85 on my tundra and chevy silverado and got 13.5 hwy mpg vs. 17 or so normally. If it ever warms up here in the next few weeks, I hope to achieve 1-2 more mpg as well. I'd love to be able to get 21-22 hwy mpg and should, but the politicians are in bed with the oil mfgs.
 
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