1983 Olds Cutlass 5.0

I have a 1983 Olds Cutlass automobile with a 5.0 - 307 cubic inch engine and a 4bbl. carb. I usually get about 23 mpg on the highway at about 60mph. On May 7, 2001 I drove to Danville, VA and got 30.15 mpg. I was using an AquaTune Water Injection System. This is a very good system. It improves your mileage and cleans out your engine by cleaning out carbon deposits. Your engine will last a lot longer. Get in touch with them.