Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 250k on engine, 40mpg in winter reasonable?

Jesse · 01-13-2011, 08:29 PM

I was just wondering what anyones thoughts on this would be. On non ecomodding websites I have been laughed at, as if my 91 civic si's fuel economy isn't anything to be proud of. Before I did ecomodding I would get 29-31mpg in the winter(with no engine warm up) and 32-34 in the summer, heavy hwy miles.

Last week here in MN we had mostly single digit temps while I was driving, one night of 51 miles it was below zero. That was my last tank and I achieved 42.93mpg. I usually see 38-40 now, but I decided to shift under 2k rpm, and stay below 65mph(about 3k rpm), seemed to pay off.

What do you think would be a realistic number for summer temperatures? Take into account that over 70 degrees I will roll one or more windows down since I have a 51 mile commute to work. So then I expect the numbers to plummet. But then again I will more than likely ride my motorcycle if it's not raining.

I am hoping to see 45-48mpg combined in 60 degree temperatures. Thanks!

mods:
front air dam w 60% grill block, rear wheel skirts, roof extension, partial undertray, tires at 44psi, deleted pass side mirror, mudflaps, moonroof deflector.

01-13-2011, 08:29 PM	#1 (permalink)
Jesse EcoModding Lurker Join Date: Oct 2010 Location: earth Posts: 26 Thanks: 10 Thanked 3 Times in 2 Posts	250k on engine, 40mpg in winter reasonable? I was just wondering what anyones thoughts on this would be. On non ecomodding websites I have been laughed at, as if my 91 civic si's fuel economy isn't anything to be proud of. Before I did ecomodding I would get 29-31mpg in the winter(with no engine warm up) and 32-34 in the summer, heavy hwy miles. Last week here in MN we had mostly single digit temps while I was driving, one night of 51 miles it was below zero. That was my last tank and I achieved 42.93mpg. I usually see 38-40 now, but I decided to shift under 2k rpm, and stay below 65mph(about 3k rpm), seemed to pay off. What do you think would be a realistic number for summer temperatures? Take into account that over 70 degrees I will roll one or more windows down since I have a 51 mile commute to work. So then I expect the numbers to plummet. But then again I will more than likely ride my motorcycle if it's not raining. I am hoping to see 45-48mpg combined in 60 degree temperatures. Thanks! mods: front air dam w 60% grill block, rear wheel skirts, roof extension, partial undertray, tires at 44psi, deleted pass side mirror, mudflaps, moonroof deflector.