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More Efficient and Gets Better Mileage

Just as you stated, that after running Auto-Rx in my car it would become more efficient, it has. After running well over 200 miles after the test, and I am now on my second full tank of gas, I have noticed an increase that went from 18 miles per gallon to 21 miles per gallon. I am glad to say that the product has done everything you said it would.
—Daryl B., DeLand FL