Quote Originally Posted by rockyfeller View Post
Really! My consumption was 16mpg driving, 19mpg highway driving, with an average of around 17.8-18.2mpg previously. Now it's 17.5mpg driving, 23.5mpg highway (!!) and around 19-22mpg on average. Simply amazing! With today's gas prices I don't think you can find a V8 car with this much hp consuming at such efficiency, especially a 10 yr old one!! !

My 1994 Lincoln Mark VIII, with the 32 valve cobra V8 engine produced exactly the same amount of hp as a 540 - 280 - and had much better fuel mileage than that. 30 miles per gallon on the highway. It's more about gearing than it is about the engine. V8's are almost always very efficient in highway use.