Hummer with Vortex Valve?

2 messages, Last post on Aug 28, 2007 at 7:38 PM

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#1 of 2 Hummer with Vortex Valve? by marissah Aug 28, 2007 (7:22 pm)
Can anyone tell me if the vortex valve "mileage maximizer" really helps the hummer to get better gas mileage? Replies to this message: steve_ (Aug 28, 2007 7:38 pm)
#2 of 2 Re: Hummer with Vortex Valve? [marissah] by steve_ HOST Aug 28, 2007 (7:38 pm)
Replying to: marissah (Aug 28, 2007 7:22 pm) Nope. If those things worked the automakers would put them on every car to help them meet their CAFE requirements. Check out Gas Saving Gizmos & Gadgets and "Gas-Saving" Products Rarely, If Ever Work. There's some good mpg articles under the Tips & Advice tab at Edmunds.