gas mileage question
#1
JK Newbie
Thread Starter
Join Date: Jan 2008
Location: Indiana
Posts: 82
Likes: 0
Received 0 Likes
on
0 Posts
gas mileage question
In a continuing effort to save gas, I have a question. I noticed coasting down hills, the RPMs stay between 1500-2000. To save gas, I can switch the trany into neutral and have the RPMs below 1000. Is this a good idea? Will this cause wear on the trany?
#4
no it shouldn't hurt it at all. It will increase your milage too if you have a long downhill straight-away. Won't notice too much of an increase on short hills. If coming from denver, I usually throw it in neutral once I get through the Eisenhauer tunnel and coast the next 10 miles descending over 2000 feet. Done this in all the vehciles I've owned up here and never a problem. This is actually really common in other countries too as their gas prices are extreme compared to ours
Last edited by husker_shoe; 06-30-2008 at 05:46 PM.
#6
JK Jedi Master
Before we advise to put it in neutral to coast down hills, we need to determine if the fuel shuts off when the wheels are turning the engine, as happens when going down hill.
Some vehicles shut off the fuel, which would use less fuel than maintaining idle in neutral. Plus the fact that in neutral you would use more brakes to keep from gaining speed, which would probably offset any perceived fuel savings.
Some vehicles shut off the fuel, which would use less fuel than maintaining idle in neutral. Plus the fact that in neutral you would use more brakes to keep from gaining speed, which would probably offset any perceived fuel savings.
#7
JK Super Freak
Before we advise to put it in neutral to coast down hills, we need to determine if the fuel shuts off when the wheels are turning the engine, as happens when going down hill.
Some vehicles shut off the fuel, which would use less fuel than maintaining idle in neutral. Plus the fact that in neutral you would use more brakes to keep from gaining speed, which would probably offset any perceived fuel savings.
Some vehicles shut off the fuel, which would use less fuel than maintaining idle in neutral. Plus the fact that in neutral you would use more brakes to keep from gaining speed, which would probably offset any perceived fuel savings.
I know the onboard MPG computer isn't that accurate but is there a different when in nuetral going down a hill then when in gear?
Trending Topics
#8
JK Enthusiast
Join Date: May 2008
Location: Massachusetts
Posts: 212
Likes: 0
Received 0 Likes
on
0 Posts
If you are at the point of saving gas by putting the car in neutral...perhaps using a Jeep as your daily driver is not the best financial choice for you
Just saying....
Just saying....
#9
JK Super Freak
When people ask me what mileage I get I tell them " I don't know, I didn't buy it for fuel efficiency, my Toyota 4runner got 25 MPG with 33s and the A/C running "
#10
JK Jedi Master
My sentiments exactly. I tell people my other vehicle gets 55 mpg highway and 48 mpg around town (VW TDI).