MoD wrote:
i'm talking about when i set my cruise. you cant keep it under 2k all the time
But on cruise under 2000 RPMs is Grandma speed
and wait my Grandmother never drove that slow since I taught her how to drive
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| Improving MPG http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=75089 |
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| Author: | I h8 winter [ Sun Apr 28, 2013 8:57 pm ] |
| Post subject: | Improving MPG |
I'm looking to get better MPG what would be the best aftermarket part to start with? I'm thinking cold air intake with K&N or exhaust Thanks for any advice. |
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| Author: | JeepMorrison [ Sun Apr 28, 2013 9:22 pm ] |
| Post subject: | Re: Improving MPG |
Both are waste of money. First good tune up and keep your foot off the floor board. Loose some weight. And if you still don't get mpg you want....sell it for a prius. I get 18-20 mpg highway. Tommudd gets 21 with 265/75 and 4.10 gears. Sent from my Home Phone using Tapatalk |
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| Author: | lfhoward [ Sun Apr 28, 2013 9:26 pm ] |
| Post subject: | Re: Improving MPG |
I would suggest getting a ScanGauge or some other ecometer that shows you your instantaneous gas mileage. The instant feedback will help you change your driving habits on the fly. You will learn to get up to speed quickly and coast a lot, potentially increasing your gas mileage by 25% just by modifying your driving style a bit. Other than that, keep your tires inflated to 34 psi and do the scheduled maintenance and oil changes. There's not much else you can do with a 2-ton brick on wheels. The fancy intakes, throttle body spacers, and the like are expensive and don't give you nearly as much bang for your buck. There are quite a few posts on here from people who tried them that say the K&N lets quite a bit of dirt into the engine, and doesn't increase your mileage at all. |
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| Author: | MoD [ Sun Apr 28, 2013 9:32 pm ] |
| Post subject: | Re: Improving MPG |
i agree with 4x4. The best thing you can do is get PROPER plug and coils and keep it under 2K rpms. you could look into better injectors and get a clean paper air filter. before i lifted mine i got 21.5-22 mpg 95% highway. |
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| Author: | tommudd [ Sun Apr 28, 2013 9:56 pm ] |
| Post subject: | Re: Improving MPG |
MoD wrote: i agree with 4x4. The best thing you can do is get PROPER plug and coils and keep it under 2K rpms. you could look into better injectors and get a clean paper air filter. before i lifted mine i got 21.5-22 mpg 95% highway. Under 2000 RPM, disagree that's lugging the engine too much Mine doesn't even like to run that slow Best MPGs for me is 72-75 mph |
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| Author: | MoD [ Sun Apr 28, 2013 10:01 pm ] |
| Post subject: | Re: Improving MPG |
i'm talking about when i set my cruise. you cant keep it under 2k all the time |
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| Author: | tommudd [ Sun Apr 28, 2013 10:08 pm ] |
| Post subject: | Re: Improving MPG |
MoD wrote: i'm talking about when i set my cruise. you cant keep it under 2k all the time But on cruise under 2000 RPMs is Grandma speed and wait my Grandmother never drove that slow since I taught her how to drive
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| Author: | tjkj2002 [ Sun Apr 28, 2013 10:55 pm ] |
| Post subject: | Re: Improving MPG |
MoD wrote: i'm talking about when i set my cruise. you cant keep it under 2k all the time So you cruise at 55mph on the highway? That is about as fast as you can go and be below 2000rpm's.The 3.7 see's it's best mpg's between 2600-2900rpm's. |
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| Author: | tommudd [ Sun Apr 28, 2013 11:18 pm ] |
| Post subject: | Re: Improving MPG |
tjkj2002 wrote: MoD wrote: i'm talking about when i set my cruise. you cant keep it under 2k all the time So you cruise at 55mph on the highway? That is about as fast as you can go and be below 2000rpm's.The 3.7 see's it's best mpg's between 2600-2900rpm's. Most think the lower the RPM the better their mileage will be which is not always the case
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| Author: | John3:17 [ Mon Apr 29, 2013 10:07 am ] |
| Post subject: | Re: Improving MPG |
Agreed, mine seems to do best above 2300 it'll pull hills all day long in overdrive at 2500. If you get down under 2000 all it does is downshift and never gets back in OD. Lugs down way to much under 2000. You've got to stay in the powerband.( my opinion) |
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| Author: | I h8 winter [ Mon Apr 29, 2013 2:22 pm ] |
| Post subject: | Re: Improving MPG |
Thanks for all the input. Just an FYI I'm fine with 16-20 but just thought I'd ask. Should i even waste my $$ on exhaust or K&N? After reading all your input I'm wondering if I'd even gain anything |
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| Author: | tommudd [ Mon Apr 29, 2013 3:39 pm ] |
| Post subject: | Re: Improving MPG |
K&N is a waste either CAI or in the box, just make sure you keep good clean filters in there at all times Stay up on plug changes as well If you're getting 16 in town and 20 on the hiway thats pretty good/average |
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| Author: | MoD [ Mon Apr 29, 2013 5:41 pm ] |
| Post subject: | Re: Improving MPG |
tjkj2002 wrote: MoD wrote: i'm talking about when i set my cruise. you cant keep it under 2k all the time So you cruise at 55mph on the highway? That is about as fast as you can go and be below 2000rpm's.The 3.7 see's it's best mpg's between 2600-2900rpm's. At 2000 rpms my kj does 65... |
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| Author: | TheBlueKJ [ Mon Apr 29, 2013 6:27 pm ] |
| Post subject: | Re: Improving MPG |
Not to mention all of the carbon build up under and around 2000 rpms |
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| Author: | tjkj2002 [ Mon Apr 29, 2013 7:50 pm ] |
| Post subject: | Re: Improving MPG |
MoD wrote: tjkj2002 wrote: MoD wrote: i'm talking about when i set my cruise. you cant keep it under 2k all the time So you cruise at 55mph on the highway? That is about as fast as you can go and be below 2000rpm's.The 3.7 see's it's best mpg's between 2600-2900rpm's. At 2000 rpms my kj does 65... Maybe with the manual trans,not with a auto. Heck I'm turning 2100rpm's to do 50mph,at 65mph I'm turning 2800rpm's. |
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| Author: | MoD [ Mon Apr 29, 2013 8:23 pm ] |
| Post subject: | Re: Improving MPG |
I have an automatic. I'll take a picture! But I guess I drive my kj wrong anyway... |
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| Author: | ncjeep [ Mon Apr 29, 2013 10:38 pm ] |
| Post subject: | Re: Improving MPG |
tjkj2002 wrote: Maybe with the manual trans,not with a auto. Heck I'm turning 2100rpm's to do 50mph,at 65mph I'm turning 2800rpm's. Mine is auto and at 60mph i cruise at around 1790 - 1800rpm's at 75mph i'm around 2200 - 2300rpm's can't remember off the top of my head. |
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| Author: | MoD [ Tue Apr 30, 2013 12:05 am ] |
| Post subject: | Re: Improving MPG |
at least i am not the only one... |
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| Author: | ncjeep [ Tue Apr 30, 2013 9:19 pm ] |
| Post subject: | Re: Improving MPG |
today i checked mine cruising at 80mph and i'm turning 2400rpm's on the dot |
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| Author: | CRD Joe [ Sun May 05, 2013 11:29 pm ] |
| Post subject: | Re: Improving MPG |
I left Phoenix last week and drove 768 miles on one tank. 39.75 mpg. 60mph cruise control the whole time! Take youre time getting to cruise speed and use the cruise!!! |
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