Now see Garth, I knew someone was going to try to come up with an excuse, or call you a liar. After all, it is a mortal sin to drive faster than 50MPH. fuel economy at faster speeds. THAT JUST WON'T DO!!! :) Forget the fact that Otto Cycle engines haven't significantly changed in about a century. Your car is so old, it doesn't count. (!)
Yesterday, I found another source, an engineer working on engines used in 4X4 off-road vehicles. Yes, they are Otto Cycle engines. He stated that maximum fuel economy will be achieved around 60% of the engine's RPM at (maximum horsepower RPM). In my case, that's about ~3400 RPM (give or take, did the math in my head, so that could be a little off). But I have other sources that say my engine should be most fuel-efficient near 3200 RPM, and yet more sources that say my engine should be most fuel-efficient in the range of 3200-3600RPM. Yet if I dare to post the truth that my fuel economy is maximized at 3500RPM, I am repeatedly branded as a liar. poo, the experts who are telling me how to figure the RPM of maximum fuel efficiency can't ALL be wrong. Maybe I should donate my car to science, as it's obviously got some kind of alien technology in it's Otto Cycle engine, or else it wouldn't ACT like an Otto Cycle engine. (!)
Welcome to the liar's club, Garth. Stop posting the truth that your engine is most fuel-efficient at 64MPH. Either that, or be prepared to be called a liar. -Dave
