The million dollar question is why did the Winnebago Elandon and the Olds Silhouette see 20% fuel economy improvements?
How Amsoil Improves Fuel Economy] There are many variables, many possibilities… I didnt expect either result. Initially I didnt believe either result. But in the end I was forced to deal with the fact that they were real, ongoing, lasting (long-term) improvements. And in the case of the RV, its very hard to dispute that his mileage is much better than what he ought to get, compared to similar or identical vehicles. For purposes of full disclosure, he actually got a 30% improvement but he, his mechanic and I all agreed that the other changes/improvements they made to the motor home probably could not have accounted for more than a 10% gain.
