Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Does coasting in neutral or coasting in gear save more gas?

PaleMelanesian · 07-15-2008, 10:12 AM

I don't consider in gear to be coasting at all. That's engine braking.

Coasting is in neutral, either EOC or engine on. EOC gives you infinite mpg, engine-on gives you high (100-300) mpg.

If you have to stop due to a red light, stop sign, or traffic backup, use engine braking where it cuts off the fuel flow. Any other time, go to neutral. The longer coasting distance easily overcomes the slight bit of idle-level fuel consumption.

The fuel consumption while the engine is off is related to a specific revision of scangauge. 3.15, I believe. Mine is an earlier one that reads an accurate 9999mpg in the same case, but it doesn't know about DFCO.

07-15-2008, 10:12 AM	#9 (permalink)
PaleMelanesian Master EcoModder Join Date: Dec 2007 Location: Texas Posts: 1,479 PaleCivic - '96 Civic DX Sedan Team Honda 90 day: 74.33 mpg (US) Thanks: 148 Thanked 138 Times in 97 Posts	I don't consider in gear to be coasting at all. That's engine braking. Coasting is in neutral, either EOC or engine on. EOC gives you infinite mpg, engine-on gives you high (100-300) mpg. If you have to stop due to a red light, stop sign, or traffic backup, use engine braking where it cuts off the fuel flow. Any other time, go to neutral. The longer coasting distance easily overcomes the slight bit of idle-level fuel consumption. The fuel consumption while the engine is off is related to a specific revision of scangauge. 3.15, I believe. Mine is an earlier one that reads an accurate 9999mpg in the same case, but it doesn't know about DFCO. __________________ - - - - -Best 11-mile commute: 105 mpg - - - - -Best tank: 88.5 mpg / 1133 miles Last edited by PaleMelanesian; 07-15-2008 at 10:58 AM..