I'm sure it will. My 04 is 2wd and I easily pull 17mpg at 80mph. I only monitor with a sg so I don't always check ficm volts. But since it got cold I was watching one day when I started it and it stayed at 36v for awhile. I also noticed mileage had tanked.Hopefully it will bring back some MPG as well. But thats one good thing about it being cold is that it will tell you whats going bad haha.
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