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  #73  
Old 06-04-2013, 04:09 PM
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Re: 2014 GC 3.6L V6 enough?

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Originally Posted by Andoskyy View Post
add 2-3MPG by shutting off cruise control.

Cruise control does whatever it takes to keep you at exactly the speed you set it at. Slow down 2-3MPH going uphill and prevent a downshift

I had 1,000 miles on my '14 v6 when i did a 600 mile road trip I averaged 25MPG with about 500 miles highway, 100 miles secondary roads. I'm a 65-75mph driver.
Agreed, I got much better MPG turning Cruise off.

Also it might sound crazy, but try using the paddle shifters too instead of allowing the computer to shift. I found that going up hills the car would automatically downshift, but if you use the paddle shifters you can force it to hold in the 8th gear and just coast up the hill (might slow by a few MPH to get up the hill, but doesn't need to downshift then, saving MPG).

Also if you manage the downward hills good you can coast uphill without much loss in speed. For ex: If the speed limit is 60mph and I'm going on a hilly road, when I hit the downgrade I will let the Jeep coast and pick up a some MPH to maybe about 65mph. Then when I get to the upgrade, I just barely throttle the gas enough to keep it in 8th gear and coast up the hill losing about 1mph every 100yards or so. So by the time I get near the top of the hill I'm still at the speed limit (60mph) and not losing any ground nor using any extra acceleration.

Works wonders if you manage the hills and throttle with the downgrade and upgrade. I literally got 30mpg using this method when traveling home (about 50 miles) over memorial day weekend on a 2 lane up and down road.

Kind of fun too, it's like a game to see how good of MPG I can get.
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  #74  
Old 06-04-2013, 04:21 PM
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Re: 2014 GC 3.6L V6 enough?

Quote:
Originally Posted by Andoskyy View Post
add 2-3MPG by shutting off cruise control.

Cruise control does whatever it takes to keep you at exactly the speed you set it at. Slow down 2-3MPH going uphill and prevent a downshift

I had 1,000 miles on my '14 v6 when i did a 600 mile road trip I averaged 25MPG with about 500 miles highway, 100 miles secondary roads. I'm a 65-75mph driver.
Yes, cruise control was off. If you have a sense of the physics, you can do much better with it off if driving for efficiency.
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  #75  
Old 06-04-2013, 04:25 PM
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Re: 2014 GC 3.6L V6 enough?

Yes to all of the above. I do the same thing with the hills, etc.
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  #76  
Old 06-04-2013, 06:50 PM
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Re: 2014 GC 3.6L V6 enough?

I've never, ever heard until today that turning off the cruise control gives you better gas mileage. It's been my experience (and every professional opinion I've heard or read) that using cruise control is the best way to obtain good fuel mileage. The fact that you're slowing down while going uphill sounds like a good tactic, but I wouldn't really place it under the general advice of "turning off cruise control."

And I have absolutely no idea how one might "coast uphill." ???

Tony
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  #77  
Old 06-04-2013, 06:58 PM
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Re: 2014 GC 3.6L V6 enough?

Tony,

It is probably true that if you concentrate on fuel economy you can beat what CC can give you.

Don't you love cruising along an interstate and the car in front slows down going up a hill. Now you either have to disengage your cruise or get out of your lane and pass. But you should feel good that somebody just saved two cents.

I'll stick to cruise and pay the gas bill.


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Old 06-04-2013, 08:25 PM
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Re: 2014 GC 3.6L V6 enough?

In Florida cruse does not hurt as much.
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  #79  
Old 06-04-2013, 09:02 PM
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In my 16 years of driving I've used cruise control less than 5 times for less than 5 minutes each. I like being in control of everything while driving.

Sure, I may slow down a few mph going uphill, but you shouldn't be close enough to me to care.
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Old 06-04-2013, 10:04 PM
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Re: 2014 GC 3.6L V6 enough?

I love this gas mileage talk...

I'm in a 12 srt with the 5 speed. I can do 21mpg at 70ish mph.

If you guys are getting 23mpg in a v6, you're doing something wrong.

Cruise does make mileage worse, but not using it for long periods of time while trying to save gas is mentally exhausting. Active cruise uses way more gas then regular cruise control as well.

And a/c is good for losing 1-2mpg at least.

If you have adjustable height, lower it and it will help air flow and save some fuel.
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Old 06-05-2013, 12:35 AM
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Re: 2014 GC 3.6L V6 enough?

I'm procrastinating doing homework. I apologize ahead of time.

Tony


fueleconomy.gov: "Using cruise control on the highway helps you maintain a constant speed and, in most cases, will save gas."

thedailygreen.com: "Did you know that by keeping your car at a steady speed, cruise control helps save gas."

cnn.money.com: "Using cruise control on the highway, though, really does have a noticeable effect on fuel economy."

edmunds.com: In Edmunds.com's test using a Land Rover LR3 and a Ford Mustang, the Land Rover got almost 14 percent better mileage using cruise control set at 70 miles per hour rather than cruising at driver-controlled speeds between 65 and 75 miles per hour. The Mustang got 4.5 percent better mileage. "Surprisingly effective way to save gas."

cartalk.com: "Using cruise control on the highway does save fuel."

transportation.unl.edu: "Using the vehicles cruise control helps improve fuel economy."

drivesmarterchallenge.com: "Cruise control cuts fuel consumption by maintaining a steady speed during highway driving."

hypermiling.com: "The "accel" button on your cruise control is a great way to accelerate slowly. Cruise Control: Not just for highways anymore."

afdc.energy.gov: "Using cruise control on the highway helps you maintain a constant speed, and in most cases, will save gas."

safemotorist.com: How to get the best gas mileage out of your car: "Use cruise control for highway traveling."

ncdot.gov: "Using cruise control on 10,000 miles driven in a year could save you nearly $200 and save more than 60 gallons of fuel, according to the Department of Transportation.

gasbuddy.com: "Use Cruise Control. Maintaining a constant speed over long distances often saves gas."

carmax.com: "Use cruise control to improve gas mileage by maintaining a constant speed."


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  #82  
Old 06-05-2013, 12:37 AM
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I have gone on a few short trips (85 miles) with my 5.7 and according to the jeeps EVIC i was getting between 24.1 - 24.9mpg at around 65mph. I even saw 25.1 a few times! It dropped into the high 23mpg range doing 70mph. I was pretty surprised actually. At the time my jeep had around 1700 miles.

I use 89 Mobil or Shell gas only.
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Old 06-05-2013, 12:56 AM
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Re: 2014 GC 3.6L V6 enough?

It's funny to hear about all the effort people are putting into saving pennies when they just dropped 45-50k on their new rides. Just drive the damn thing fill it up when it's empty and focus your energy on getting over the fact you bought the v6 not the 8.

Gas is just a tax and you gotta pay if you wanna play.
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  #84  
Old 06-05-2013, 01:07 AM
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Re: 2014 GC 3.6L V6 enough?

Some of us care more about the cost. It's also about the environment.

Tony
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