Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - lower final drive mod

ever_green · 10-09-2013, 01:53 PM

went from 4.11 final drive ratio to 3.23. highway cruising rpm dropped from 2500 to 2100 rpm. also when accelerating now engine load has increased considerably. very easy to accelerate with 80% load now. highway load increased from 35% MAP to 50%. overall fuel consumption has stayed exactly the same at 10l/100km 80% city. thinking of going back to 4.11 to bring back the peppy feel. I wonder if this has something to due with all wheel drive system?

10-09-2013, 01:53 PM	#1 (permalink)
ever_green Master EcoModder Join Date: May 2011 Location: Toronto Posts: 264 gueff - '19 Mercedes Benz A250 4MATIC AMG 90 day: 30.55 mpg (US) Thanks: 8 Thanked 79 Times in 33 Posts	lower final drive mod - no difference in MPG went from 4.11 final drive ratio to 3.23. highway cruising rpm dropped from 2500 to 2100 rpm. also when accelerating now engine load has increased considerably. very easy to accelerate with 80% load now. highway load increased from 35% MAP to 50%. overall fuel consumption has stayed exactly the same at 10l/100km 80% city. thinking of going back to 4.11 to bring back the peppy feel. I wonder if this has something to due with all wheel drive system? __________________