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  #21  
Old 08-03-2013, 07:04 PM
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Here's the way I do it:

Air filter dirty, change.
Hot, use air.
Go from A to B in a safe manner.

Done.
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  #22  
Old 08-04-2013, 07:32 PM
PatrickJ PatrickJ is offline
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I put my Ram into neutral when I'm at a red light or a slow drive-thru restaurant - good idea?
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  #23  
Old 08-05-2013, 04:13 AM
urdone21 urdone21 is offline
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I'm considering a tuner for better MPG. Anyone get better MPG from a tuner?
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  #24  
Old 08-05-2013, 09:27 AM
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Originally Posted by urdone21 View Post
I'm considering a tuner for better MPG. Anyone get better MPG from a tuner?
Possibly.

But, by their very nature, I doubt if anyone's had the opportunity to accurately test any tuners out purely for MOG gains, while not taking into the equation and overlooking the HP & TQ benefits.
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  #25  
Old 08-05-2013, 10:45 AM
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Originally Posted by PatrickJ View Post
I put my Ram into neutral when I'm at a red light or a slow drive-thru restaurant - good idea?
It would be less load on the engine, but more load on the transmission when you put it in gear. I also believe the throttle doesn't move, so the fuel metering won't change, especially on a newer engine/transmission.

I have recommended to people to NOT do that on the basis of safety (on the streets)...
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  #26  
Old 08-05-2013, 11:28 AM
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Quote:
Originally Posted by PatrickJ View Post
I put my Ram into neutral when I'm at a red light or a slow drive-thru restaurant - good idea?
If I know i'm going to be stopped for a while or so; I put the transmission in neutral or park, then reach down on the dash just to the right of the steering column and turn the key one click to the left. BOOM awesome fuel efficency!

For my brothers in the '13 models and up it's even easier, you guys have PHD tech!!
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  #27  
Old 08-06-2013, 12:43 PM
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Originally Posted by TRCM View Post
Above 40 mph, it's better to have the ac on, below that, windows down

And the idling thing was true with carbs, but not with FI.
This statement can only be half true. A single start up uses a definitive amount of fuel. If an engine is at idle for a given amount of time that uses less than a start up then yes start up is less fuel efficient than idle. So when the "idle time/fuel consumption" exceeds a "start up consumption" idle becomes less fuel efficient.
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  #28  
Old 08-06-2013, 04:22 PM
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Originally Posted by DRX350 View Post
I agree with all those EXCEPT the air filter one.

I don't care what you say, a clean air filter will get better mileage. True, the ECM will adjust for the available air, but you'll lose power in the process, thus requiring more throttle and using more gas.

My wife's 2007 Kia got 37mpg with a stock air filter, and 42mpg with a K&N drop in replacement on the same exact trip. Shoot, even my old '96 Dodge went from 13mpg to 15mpg with the addition of a CAI...
I disagree. My 01 had a K&N drop in and I actually lost some mpg. My old 02 GMC Sierra saw no difference with a K&N drop in filter and then later with a cut open airbox.

These new vehicles usually have good airboxes. Not restrictive ones like in the past.
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  #29  
Old 08-07-2013, 09:37 AM
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Quote:
Originally Posted by Simple guy View Post
This statement can only be half true. A single start up uses a definitive amount of fuel. If an engine is at idle for a given amount of time that uses less than a start up then yes start up is less fuel efficient than idle. So when the "idle time/fuel consumption" exceeds a "start up consumption" idle becomes less fuel efficient.
I believe that time is between 3-5 minutes depending on engine. Don't take that as gospel though but I thought I saw the 5 minute thing in the owners manual.
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  #30  
Old 08-27-2013, 11:59 PM
Jason Rosenzweig Jason Rosenzweig is offline
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Reason a/c is better than open windows is because of aerodynamics, the air coming in the cab causes drag. I'm not sure if you have a sliding rear window if that will actually help reduce drag or not tho.
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