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Whats your MPG, Year and Make? Be truthful! We need better MPG's!

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Old 11-10-2015, 12:54 PM
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Originally Posted by salad
...then say that
Sorry
Old 11-10-2015, 04:44 PM
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Originally Posted by LiamLikeNeeson
Well that's not my point. But I'm saying that xj's aren't meant to be fuel efficient.
There is still a certain fuel efficiency they're capable of, and the only reasons not to get their best MPG are laziness, ignorance, stubborness.

Just because an XJ can't get 30 mpg doesn't mean that ANYONE should settle for 10 when they can get 15-20. It's stupid to waste all that gas/money.


Example: Compared to some dude who gets 12 mpg because he thinks it shouldn't matter what an XJ gets, my 18 average mpg saves me $767 per year (based on 12k miles per year at $2.30/gal). $300 savings per year over a guy with a 15 mpg XJ, and over $1200 less per year compared to a 10 mpg XJ.

I'm expecting to raise my mpg slightly higher yet as I haven't finished all the mods I've planned. It will still be as capable on/off road if not MORE capable than it is today.

Last edited by mschi772; 11-10-2015 at 05:01 PM.
Old 11-10-2015, 05:17 PM
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Originally Posted by mschi772
There is still a certain fuel efficiency they're capable of, and the only reasons not to get their best MPG are laziness, ignorance, stubborness.

Just because an XJ can't get 30 mpg doesn't mean that ANYONE should settle for 10 when they can get 15-20. It's stupid to waste all that gas/money.
Thank you! Finally, someone who doesn't slam the higher mpgs lol On flat highways with no wind at all, my old 89 on 31s would get high 20s, low 20s with a head wind, and 18 pulling a trailer. Sure, around town it sucked, but that's just how cars are. I wish my current jeep got similar mileage. I just did a tune up yesterday, so that should help a bit.
Old 11-10-2015, 05:30 PM
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Originally Posted by mschi772
There is still a certain fuel efficiency they're capable of, and the only reasons not to get their best MPG are laziness, ignorance, stubborness.

Just because an XJ can't get 30 mpg doesn't mean that ANYONE should settle for 10 when they can get 15-20. It's stupid to waste all that gas/money.


Example: Compared to some dude who gets 12 mpg because he thinks it shouldn't matter what an XJ gets, my 18 average mpg saves me $767 per year (based on 12k miles per year at $2.30/gal). $300 savings per year over a guy with a 15 mpg XJ, and over $1200 less per year compared to a 10 mpg XJ.

I'm expecting to raise my mpg slightly higher yet as I haven't finished all the mods I've planned. It will still be as capable on/off road if not MORE capable than it is today.

^^^ This guy

That a Class 8 highway tractor grossing 50,000 lbs can pull 10 MPG means your 3200 lbs SUV should be able to do better.
Old 11-10-2015, 05:55 PM
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Default From the NOAA

Originally Posted by salad
If you have skin, you care about the ozone layer. if you have lungs, you care about ground-level ozone.

Most XJs affect neither.

Correct XJ's affect neither...


From the NOAA


Realtime updates:


http://ozonewatch.gsfc.nasa.gov/


Ozone depletion is caused by chlorine and bromine:


http://www.esrl.noaa.gov/csd/assessments/ozone/2010/twentyquestions/Q9.pdf


Human sources of Chlorine and Bromine:


http://esrl.noaa.gov/csd/assessments/ozone/2006/chapters/Q7.pdf


Short exerpt mentioning fossil fuel burning:


Other human sources of chlorine and bromine.




"Other chlorine- and bromine-containing gases are released
regularly in human activities. Common examples are the use of chlorine gases to disinfect swimming pools and wastewater, fossil fuel burning, and various industrial processes. >These activities do not contribute significantly to stratospheric amounts of chlorine and bromine< because either the global source is small or the emitted gases are short-lived (very reactive or highly soluble) and, therefore, are removed from the atmosphere before they reach the stratosphere."


Car emmissions do not affect the "Ozone layer". Wish the on going myth that is helping to destroy our economy would end my friend.
Old 11-10-2015, 06:07 PM
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Sheesh...

We all drive XJ's people. They aren't frelling Prius's. You want better mileage, get a more fuel efficient ride. I pull 14-17 in a highly modded rig. And guess what? Worth every penny. For what it is, I'm extremely happy.

Last edited by Rogue4x4; 11-10-2015 at 06:14 PM.
Old 11-10-2015, 06:12 PM
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Originally Posted by mschi772
There is still a certain fuel efficiency they're capable of, and the only reasons not to get their best MPG are laziness, ignorance, stubborness.
Whatever. Age and wear has a lot to do with it, as do driving habits, load, and fuel used. Original factory numbers are based off of a BRAND NEW vehicle. If you want to replace every damned part on your rig to get the best economy, go for it. The money you spend on it will far outweigh the fuel $$$ you save.

Put gas in it, drive it, and enjoy it.
Old 11-10-2015, 06:30 PM
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1998, 4.0, 3 inch lift, 31x10.5 tires, new plugs,wires, cap, rotor and installed a throttle body spacer from rough country. Avg 18.2 to 18.6 60% highway driving. I run 87 octane, and use Rotella 6 oil. Speedo gear changed so this is accurate.

Last edited by Colnajoe; 11-10-2015 at 07:00 PM. Reason: oops
Old 11-10-2015, 06:41 PM
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Hahhahhaaa

Originally Posted by salad
^^^ This guy



That a Class 8 highway tractor grossing 50,000 lbs can pull 10 MPG means your 3200 lbs SUV should be able to do better.
Old 11-11-2015, 12:07 AM
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Originally Posted by Colnajoe
Hahhahhaaa
i had a 86 mj I drove back from ky to socal in 1994 and got 30mpg it was a 2wd 2.5 5spd. with 22 gal tank so 2 gal res and got 600 miles to the tank, my 01 classic gets 20-21 most the time hwy and 16 city
Old 11-11-2015, 05:55 AM
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Originally Posted by roninofako
Whatever. Age and wear has a lot to do with it, as do driving habits, load, and fuel used. Original factory numbers are based off of a BRAND NEW vehicle. If you want to replace every damned part on your rig to get the best economy, go for it. The money you spend on it will far outweigh the fuel $$$ you save.

Put gas in it, drive it, and enjoy it.
I never said that we should strive for factory mpg. I didn't even say what number everyone should strive for. I wouldn't expect an XJ with armor, 4" lift, and 33's to average 18 mpg like me, but they sure shouldn't be settling for 10 mpg either.

I also showed just how much money one can save annually. When I got my XJ, it got about 15 mpg. Every mod and maintenance item that I've done for the sake of mpg has already paid for itself. Don't tell me that the money I spend outweighs the fuel savings when that's the exact opposite of what already happened.

Hell, just 1 mpg difference is worth almost $100 annually (based on 12k miles at $2.30/gal). I can maybe see making excuses if one's XJ only sees a few hundred to a couple thousand miles per year, but for anyone regularly driving their XJ and owning it long-term there's no excuse.

Last edited by mschi772; 11-11-2015 at 06:02 AM.
Old 11-11-2015, 04:05 PM
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Originally Posted by mschi772
I never said that we should strive for factory mpg. I didn't even say what number everyone should strive for. I wouldn't expect an XJ with armor, 4" lift, and 33's to average 18 mpg like me, but they sure shouldn't be settling for 10 mpg either.

I also showed just how much money one can save annually. When I got my XJ, it got about 15 mpg. Every mod and maintenance item that I've done for the sake of mpg has already paid for itself. Don't tell me that the money I spend outweighs the fuel savings when that's the exact opposite of what already happened.

Hell, just 1 mpg difference is worth almost $100 annually (based on 12k miles at $2.30/gal). I can maybe see making excuses if one's XJ only sees a few hundred to a couple thousand miles per year, but for anyone regularly driving their XJ and owning it long-term there's no excuse.
Well you came off kinda harsh there, bud, calling people stupid, ignorant and lazy for not getting the most they could out of it. Some of us just don't care as much as you do. I agree with you, why not get the best you can? But that's not how the original post came off, so sorry. I think that for me running 35's, DIY beadlocks, with a stroker, 4.88's, front and rear bumpers, sliders, winch, and all the tools and stuff, that 14-17 is golden. After modding my rig, I NEVER expected to see high numbers, but that's the price you pay when you mod.

"Energy can be neither created nor be destroyed, but it transforms from one form to another, for instance chemical energy can be converted to kinetic energy in the explosion of a stick of dynamite. A consequence of the law of conservation of energy is that a perpetual motion machine of the first kind cannot exist."
Old 11-11-2015, 04:46 PM
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I figured a carbed small block would get me 13-14. I was right. It's a Jeep not a Metro.
Old 11-11-2015, 07:30 PM
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Originally Posted by roninofako
Well you came off kinda harsh there, bud, calling people stupid, ignorant and lazy for not getting the most they could out of it. Some of us just don't care as much as you do. I agree with you, why not get the best you can? But that's not how the original post came off, so sorry. I think that for me running 35's, DIY beadlocks, with a stroker, 4.88's, front and rear bumpers, sliders, winch, and all the tools and stuff, that 14-17 is golden. After modding my rig, I NEVER expected to see high numbers, but that's the price you pay when you mod.
I'm not judging anyone specifically, and given your build and its corresponding mpg, I'm not judging you either. 14-17 with a build like that doesn't sound bad at all. Maybe there's more you could do, maybe not--only you know what you have/haven't done, but mpg like that for your build doesn't immediately make me want to scream "improve it!" for you.

I won't apologize for sounding harsh. If being blunt offends someone, then they probably deserve to be offended for some reason or another. I'm not always in the mood to be diplomatic and sweet, and this is one of those times that I just feel like telling it how I see it. Too often I see people making excuses for bad mpg that don't make any sense, and I'm just plain sick of those excuses. If someone wants to "opt" for worse mpg than the XJ's potential, they're free to do that, but I WILL think they are being ignorant/lazy/stubborn/whatever especially if they do it while spouting one of the cliché excuses like "it's not a Prius, so why should I care if it gets garbage mpg?" If a particular mod isn't fiscally rational or conflicts directly with some other part of a build, I'd understand, but so many things can be done that pay for themselves so quickly and do not interfere with most builds.

Last edited by mschi772; 11-11-2015 at 07:33 PM.
Old 11-11-2015, 07:47 PM
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I got your Prius right here!



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Let's cut the crap. XJ's get lousy gas mileage and if they are maintained normally it's not going to vary much from one to another. The biggest variable is how you drive them. I'm not hypermiling mine.


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