Well, my gas mileage again has plummeted from a consistent 43 mpg to about 35 mpg due to the winter season (mostly gas and warming up).
So being the anal guy I am about fuel efficiency, I'm looking for the best ways to improve fuel economy.
I've read in past threads that coasting in high gear uses less gas than coasting in neutral.
How is that so?
So coasting in 5th gear at 65 mpg with engine about ~2500 RPM is using less gas than coasting in neutral (idle) at 800 RPM?
I know idling uses next to no gas, so coasting at 2500 RPM in gear would have to use like no gas and only the current momentum to keep me going. So the injectors don't pump gas into the chamber when coasting in gear?
What about using cruise control? I see publications telling us to use cruise control to keep RPM's constant (assuming flat roads).
How is it different if we were to keep a constant RPM manually?
Probably not much, if any right?
So being the anal guy I am about fuel efficiency, I'm looking for the best ways to improve fuel economy.
I've read in past threads that coasting in high gear uses less gas than coasting in neutral.
How is that so?
So coasting in 5th gear at 65 mpg with engine about ~2500 RPM is using less gas than coasting in neutral (idle) at 800 RPM?
I know idling uses next to no gas, so coasting at 2500 RPM in gear would have to use like no gas and only the current momentum to keep me going. So the injectors don't pump gas into the chamber when coasting in gear?
What about using cruise control? I see publications telling us to use cruise control to keep RPM's constant (assuming flat roads).
How is it different if we were to keep a constant RPM manually?
Probably not much, if any right?