Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Engine/transaxle preheat yields 25% better FE in short commute.

orange4boy · 03-08-2010, 01:46 PM

Using a 1500 watt circulation tank heater starting at 5˚C It reached 70˚C engine coolant temperature, in the garage in 40 minutes. This is the temperature that a Prius can enter stage 4 in which the engine shuts off after warming up allowing EV mode and automatic EOC.

I got a record commute: 4.3 L/100Km (54.7 mpg) My average without preheat was 5.8 (40.5 mpg)

25+% FE

03-08-2010, 01:46 PM	#1 (permalink)
orange4boy Master EcoModder Join Date: Aug 2008 Location: The Wet Coast, Kanuckistan. Posts: 1,275 The Golden Egg - '93 Toyota Previa DX 90 day: 31.91 mpg (US) Chewie - '03 Toyota Prius 90 day: 57 mpg (US) The Spaceship - '00 Honda Insight Thanks: 100 Thanked 306 Times in 178 Posts	Engine/transaxle preheat yields 25% better FE in short commute. Using a 1500 watt circulation tank heater starting at 5˚C It reached 70˚C engine coolant temperature, in the garage in 40 minutes. This is the temperature that a Prius can enter stage 4 in which the engine shuts off after warming up allowing EV mode and automatic EOC. I got a record commute: 4.3 L/100Km (54.7 mpg) My average without preheat was 5.8 (40.5 mpg) 25+% FE __________________ Vortex generators are old tech. My new and improved vortex alternators are unstoppable. "It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.