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Old 12-22-2011, 01:23 PM
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WK2 3.6 l V6 Decrease in mpg.

I got my WK2 with a 3.6 L V6 engine at the end of September. I noticed that my mpg has decreased by 2 mpg at the end of November and in December. I was wondering if anyone else has seen this observation. I drive in Northern California.
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Old 12-22-2011, 01:49 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

My 5.7L is experiencing the same thing in Northern New England.
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Old 12-22-2011, 01:57 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

I'm not from up north, but from what i hear, in the winter they use a different blend of gas, and the MPG is usually lower than the spring/summer/fall blend
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Old 12-22-2011, 02:04 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

It is because of winter gas. Happens every year.
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Old 12-22-2011, 03:28 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

yup, it's the winter gas. All of my vehicles within the past 8yrs have done the same. I couldn't ever do better then 17/18mpg with our tahoe from nov-feb, but come march it would shoot back up near 20mpg (hwy)
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Old 12-22-2011, 03:30 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

I'll agree with that. I am in the Boston area and have similar results. Just the blend of fuel.
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Old 12-22-2011, 03:57 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

Same here.
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Old 12-22-2011, 04:08 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

Happens here too.
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Old 12-22-2011, 04:35 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

Yup same here!
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Old 12-22-2011, 04:39 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

What is in winter gasoline to cause a decrease in mpg?
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Old 12-22-2011, 04:55 PM
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Re: WK2 3.6 l V6 Decrease in mpg.

Quote:
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What is in winter gasoline to cause a decrease in mpg?
Alcohol.
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Old 12-22-2011, 04:58 PM
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What is in winter gasoline to cause a decrease in mpg?
It is just a different blend. The high temperatures of summer require a higher quality fuel for emissions purposes and with the colder temps with winter we get a fuel that isn't as "potent" as the summer blends. Generally they'll increase the ethanol content.

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