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Old 03-04-2008, 11:50 PM   #14 (permalink)
Giant Moving Eco-Wall
DifferentPointofView's Avatar
Join Date: Dec 2007
Location: The Dale, IL (or A-Dale)
Posts: 1,120

The Jeep! - '95 Jeep Grand Cherokee ZJ Laredo
90 day: 23.75 mpg (US)

The Caliber - '07 Dodge Caliber R/T
90 day: 30.6 mpg (US)

The 'Scort - '98 Ford Escort LX
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yes, welcome welcome.

Penzoil Platinum 10w-30 Engine Oil
I don't know, but I heard from a veteran engine guy that has taken apart many engines run on penzoil motor oil, and he says that these motors tend to be the most sludged up gunky motors he's ever seen in his life. He said that valvoline is much better. Thats just what I observed from his shop.

The trouble as I see it is there may not be any attached flow on the top of the roof because of the flat, vertical windshield blasting the air into turbulence upwards & to the sides. If that's the case, then a rear taper may not help much.

I've always wondered about these, and weather or not they help the air flow by hitting it on top and making it go with the roof air. *I think* It would also help at highway speeds because it would lessen the down force that trucks seem to have by creating a slight upforce, lessening the load on the engine and tires. equaling lower wind, rolling, and engine resistance.

Yea.. I drive a Jeep and I'm on a fuel economy site, but you just wouldn't understand... "It's a Jeep thing!" *Jeep Wave*

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