Fuel Milage
04-15-2009, 03:27 PM
#1
On The Tree
Thread Starter
iTrader: (2)
Join Date: Jul 2008
Location: CSA
Posts: 187
Likes: 0
Received 0 Likes
on
0 Posts
Fuel Milage I know the car is supposedly capable of getting 28mpg highway, so my question is what speed/rpm gives the optimal mileage for highway driving? Car is almost completely stock engine wise except for a lid.
At about ~70mph the superbly accurate tach reads ~1800rpm, is this where is should be?
At about ~70mph the superbly accurate tach reads ~1800rpm, is this where is should be?
04-15-2009, 04:11 PM
#3
TECH Fanatic
Join Date: Apr 2008
Location: Shillington PA
Posts: 1,775
Likes: 0
Received 0 Likes
on
0 Posts
I know the car is supposedly capable of getting 28mpg highway, so my question is what speed/rpm gives the optimal mileage for highway driving? Car is almost completely stock engine wise except for a lid.
At about ~70mph the superbly accurate tach reads ~1800rpm, is this where is should be?
At about ~70mph the superbly accurate tach reads ~1800rpm, is this where is should be?
04-15-2009, 05:07 PM
#5
TECH Fanatic
Join Date: Apr 2008
Location: Shillington PA
Posts: 1,775
Likes: 0
Received 0 Likes
on
0 Posts
Thats not 100% true. the most *efficient* rpm vs speed may not be the lowest RPM because you have to have enough rpm to maintain speed. example: if your going 60ish in 6th and your rpms are around 1500 and every time you hit a hill you have to give it more throttle, vs if your doing 70 and your rpms are 1800 and its enough to sustain speed without giving more throttle, then 1800 is more efficient than 1500. 
Trending Topics
04-15-2009, 05:44 PM
#10
TECH Resident
iTrader: (3)
Join Date: Sep 2007
Location: Holmes County (thats right Amish Country), OHIO
Posts: 896
Likes: 0
Received 1 Like
on
1 Post
Thats not 100% true. the most *efficient* rpm vs speed may not be the lowest RPM because you have to have enough rpm to maintain speed. example: if your going 60ish in 6th and your rpms are around 1500 and every time you hit a hill you have to give it more throttle, vs if your doing 70 and your rpms are 1800 and its enough to sustain speed without giving more throttle, then 1800 is more efficient than 1500.
04-15-2009, 11:38 PM
#12
On The Tree
Thread Starter
iTrader: (2)
Join Date: Jul 2008
Location: CSA
Posts: 187
Likes: 0
Received 0 Likes
on
0 Posts
I will be going ~150miles tomorrow. I might just have to fill up before I leave and right before I get there just to find out. Driving here the other night just judging by how for the needle fell it seems like it would be rather high amount of fuel burned. That method probably isn't very accurate though...
