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Originally Posted by Onefast99gsx
So if you're looking to just help save the environment or for better octane, then ok. If you're looking to save $$$, look elsewhere.
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Yep, you're definitely not going to save any money. From the reading I've done it doesn't even help the environment. It reduces carbon monoxide and NOx, but increases hydrocarbon and has little to no effect on reducing global warning at best and some studies show it makes it worse.
It does help automakers meet the Corporate Average Fuel Economy standards due to loop rules in the law which is likely the major reason GM makes flex fuel vehicles.
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