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Old 06-25-2008, 05:26 PM
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Default Re: 19.8mpg after HC removed!

Quote:
Originally Posted by jmdsurf45 View Post
MechEng1, Is your truck stock? The question has already been asked but what is the HC filter?
My truck is all stock. you can click on the camera icon to see my ride. HC stands for Hydro Carbon that traps the unburn fuel fumes.
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