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Spinners and gas mileage
I was watching one of those vehicles with the
interesting spinner wheels going down the freeway at about 70 with the spinner part looking like it was only going 10 or so. Does anyone know what effect these things would have on gas mileage? I assume that they add unsprung weight which would be detrimental to handling on the SUV that they are usually attached to, but I can't reason out the effect on mileage or accelerations. I assume that they spin pretty freely, so the friction wouldn't be much of an issue in accelerating from a stop nor would it effect highway mileage much. I'm not saying the effect is zero, but it must be less than 1%. Things like tire pressure would matter much more. |
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