Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Going up steep hills- downshift or floor it?

99LeCouch · 09-14-2010, 10:32 PM

Going up one hill I'd try keeping the Buick in OD for as long as I could. One day it slowed enough to shift to 3rd, and my mileage went up. The RPM's went from ~1100 to ~1700, and the engine timing started advancing again. I'm guessing the engine was not making enough torque that low to propel the car up the hill.

09-14-2010, 10:32 PM	#24 (permalink)
99LeCouch Driving the TurboWeasel Join Date: Mar 2009 Location: Steuben County, NY Posts: 459 Thanks: 14 Thanked 18 Times in 17 Posts	Going up one hill I'd try keeping the Buick in OD for as long as I could. One day it slowed enough to shift to 3rd, and my mileage went up. The RPM's went from ~1100 to ~1700, and the engine timing started advancing again. I'm guessing the engine was not making enough torque that low to propel the car up the hill. __________________ 2012 Chevrolet Cruze Eco 6MT