Maybe I'm using the wrong term. What I'm refering to is when you use too large of an engine for a certain load and efficiency drops. As I make improvements in aerodynamics and take more parasitic loads off of the engine, I'm afraid I'll hit a wall where I can no longer improve my mileage because...
All,
I'm so glad I found this forum. Nothing like engineers to give you a straight answer. I am modifying mt truck, a 1998 Nissan Frontier, to maximise its fuel economy (see my website at www.maxmpg.org). I started at around 23-25 combined city and highway and and now at 26-28 mpg combined...
