View Single Post
Old 08-04-2010, 02:37 PM   #13 (permalink)
basjoos
Master EcoModder
 
basjoos's Avatar
 
Join Date: Dec 2007
Location: Upstate SC
Posts: 1,088

Aerocivic - '92 Honda Civic CX
Last 3: 70.54 mpg (US)

AerocivicLB - '92 Honda Civic CX
Team Honda
90 day: 55.14 mpg (US)

Camryglide - '20 Toyota Camry hybrid LE
90 day: 62.77 mpg (US)
Thanks: 16
Thanked 676 Times in 302 Posts
Quote:
Originally Posted by redpoint5 View Post
It follows that if the most efficient way to climb a hill is as slow as possible while over 1200 rpm, then doing it in 1st gear would be most efficient. I find this difficult to believe.
In general, I get my best mileage when I climb the hills as slow as I can (in 5th gear) while still keeping the rpm over 1200, usually at around 70% to 80% throttle. That translates into a speed of 40 to 45mph. Impossible to do 40 to 45mph in 1st gear and it wouldn't be efficient at a screaming rpm even if I could. Below 1200 rpm in 5th gear the motor gets less efficient when pulling much of a load and on steeper grades I'll have to run at a higher rpm to have enough torque to maintain speed on the hill.
__________________
aerocivic.com
  Reply With Quote