Gas Mileage

Just got back from a trip to Reno. Traveled over 1100 miles in both freeway and town driving, up and over Donner Summit, and did some nice off roading at Moonrock outside of Reno. The Jeep 392 did awesome and the gas mileage for the entire trip averaged 18.9 mpg, which I felt was respectful for this vehicle. Had a great time with family and got to see some great countryside. I almost forgot, we went up Pevine mountain which was over 8100 ft high and got great views of the entire Reno valley

 

[@JC]

That's Amazing! I've never been close to that. I average 12 to 13 mpg. Non-XR with 35" tires, stock 3:73 gears and I always use 93 octane. I wonder if the 4:56 gears really help that much, relieving engine load??? What's the secret???

I was figuring that the poster you referenced accidentally set his numbers to kilometers instead of miles...

 

[dblplay1212]

@dblplay1212 I cordially invite you to southern Texas to talk to these folks from the field yourself and see how it has impacted them. And it's a true invite. I have no hostility here - we're all Jeepers so we're all fam.

BUT I did say I was done with the political stuff, so I'll make it more about the numbers, which actually counter your case:
Run the yearly AVERAGE of the numbers that you yourself provided: let's start with Chevron - 2021 average net was 4.54% 2020 average net was negative 5.35% -a loss, and the 2019 average (from the visible numbers you provided) 5.35%. That places their 3 year average at 4.539%. The trend is the same for Shell and the same for Exxon. This isn't politics or bias. It's math. Granted, the world is screwed up last couple of years, but if you go all the way back and look at 2000 through 2010, the largest oil companies averaged a profit margin of around 6.5%. This pales in comparison to profit margins in just about every other industry. If big oil is so "evil" for sub-10% profit margins then what does that make Apple, or better yet, Pfizer, that see an average of 30% margins?

At the end of the day, it costs three times as much here in Texas to drive the 392 today as it did in January 2020 -that is the single largest annual increase in history. That's what this thread is all about: fuel mileage - which also has a cost associated to it unfortunately. Does it sway my decision to purchase one? Definitely not. But does the cost of fuel impact most Americans? Absolutely, myself included.

It's not really fair to bring up average profit margins over the last 3 years but then only look at gas prices today. Truth is they lost their shirts in 2020 and they are making it back now. You can see that in their profits margins cranked up to 8-10%. That explains gas prices being high, not "BIDEN!!!"

And yea, no hostility here either. You and I seem to have normal conversations about things we disagree on, which is refreshing.

 

[clickclickboom]

High gas prices are a good thing atm. Take money out of the consumers pocket to slow down consumption. Allow production to catch-up. Throw in some layoffs and lower the employment crunch. Inflation then subsides. Quenching inflation is painful.

 

[@JC]

High gas prices are a good thing atm. Take money out of the consumers pocket to slow down consumption. Allow production to catch-up. Throw in some layoffs and lower the employment crunch. Inflation then subsides. Quenching inflation is painful.

Well that's one idea since the economy has to absorb all of those new dollars somehow. Not pumping trillions of unnecessary dollars into an already booming economy would have been a better idea.

I know none of this is actually about the MPG of member's 392s but I CANT DISCUSS MINE since it's sitting in D1

 

[clickclickboom]

Well that's one idea since the economy has to absorb all of those new dollars somehow. Not pumping trillions of unnecessary dollars into an already booming economy would have been a better idea.

I know none of this is actually about the MPG of member's 392s but I CANT DISCUSS MINE since it's sitting in D1

Yup, sending trillions of dollars of stimmy checks into an economy that had a supply problem not a demand problem. It was just buying votes. Same as politicians now wanting to suspend gas taxes. All that is is buying votes. Then later raising the tax higher to make up for the lost revenue.

 

[BenLandry]

That's Amazing! I've never been close to that. I average 12 to 13 mpg. Non-XR with 35" tires, stock 3:73 gears and I always use 93 octane. I wonder if the 4:56 gears really help that much, relieving engine load??? I've seen people post these absurdly good MPG posts. What's the secret???
I got one of the first 392s with the JL tailgate tag. Perhaps there's a different tune on some of these??? I give up...

I’ve had my 392 nonXR for a year now, 14000 miles. I went right to 37s the day I bought it. I regeared to 4:56 before XR was a thing. Very noticeable changes to shifting, acceleration, especially in the mid power band but also off the line. It rarley down shifts out of 8th on the highway even at 85 mph going up hills. Maybe a little bit of down shifting against a strong head wind going up hill at 85…. All that said, my gas mileage is about the same..12mpg Only time it is better is when traffic forces me to drive normal speeds closer to 60-65, it goes up pretty quick. Very Big difference in MPG based on speed of driving this Jeep. I’m on the faster side normally. Goes down even quicker with top and doors off.

 

[dblplay1212]

@YukonCornelius saw this and thought of this conversation. Hope you're well, man.

https://twitter.com/x/status/1619406613760118787

 

[guarnibl]

I'm on 37's (XR) w/ tazer and 2" spacer lift, getting 9 in town. I don't drive highway very often. Up to Moab I was getting 15-16 I believe.

 

[mbc79708]

That is some very impressive mileage! We’re you seeing a lot of the “4 cyl” during those miles? I don’t yet have a feel for how much that actually saves me. I’m so early in my ownership and finally past break in that my foot just feels a bit heavy at times…

And also, I’d not thank Joe, I’d thank the oil co’s who are picking all of our pockets. Look at this Q1 versus last Q1’s financials. That $93B in profit over last year was entirely their profiteering. We’re getting had.

They are not reinvesting to find more oil and gas because of Joe and co.

 

[thexr6]

That is some very impressive mileage! We’re you seeing a lot of the “4 cyl” during those miles? I don’t yet have a feel for how much that actually saves me. I’m so early in my ownership and finally past break in that my foot just feels a bit heavy at times…

And also, I’d not thank Joe, I’d thank the oil co’s who are picking all of our pockets. Look at this Q1 versus last Q1’s financials. That $93B in profit over last year was entirely their profiteering. We’re getting had.

Basic economics. If you are not investing into business you turn more profits. Why would any Oil/Gas company invest with current administration’s policies?

 

[@JC]

...their profiteering...

OK commie.

 

[olllllo]

My other vehicle isn’t a Prius like the rest of you. My daily driver gets 9 mpg so the 14 mpg I’m getting in my 392 with improved ride quality and enjoyment has no complaints from me.

 

[Jeepstin392]

My other vehicle isn’t a Prius like the rest of you. My daily driver gets 9 mpg so the 14 mpg I’m getting in my 392 with improved ride quality and enjoyment has no complaints from me.

Who TF owns a Prius?

 

[rubiland]

About 14 mpg for my xr. Mix of city and highway. See 16 on highway 13 around town depending on how drive

Agree with this completely. How tf is OP getting 18.9???

 

[rubiland]

I think the only time I may have seen the mpg the OP notes was when I had to drive home on the highway at break in speeds while driving 300 miles to get home.

 

[justinB]

That's Amazing! I've never been close to that. I average 12 to 13 mpg. Non-XR with 35" tires, stock 3:73 gears and I always use 93 octane. I wonder if the 4:56 gears really help that much, relieving engine load??? I've seen people post these absurdly good MPG posts. What's the secret???
I got one of the first 392s with the JL tailgate tag. Perhaps there's a different tune on some of these??? I give up...

Now that I have nearly 20k 'break-in' miles, my highway mpg has increased. I did add a friction modifier to the differentials since the initial comment I made back in May 2022. And Yes, I added the modifier even though they are open difs.

While on the freeway I'm between 15.5 & 16 mpg. I am not sure if the modifier did any good (or bad), but I am definitely please I'm getting 2+ more mpg than I did 10k miles ago. It could simply be things are wearing into efficiency.?.

 

[Viking Jeeper]

Now that I have nearly 20k 'break-in' miles, my highway mpg has increased. I did add a friction modifier to the differentials since the initial comment I made back in May 2022. And Yes, I added the modifier even though they are open difs.

While on the freeway I'm between 15.5 & 16 mpg. I am not sure if the modifier did any good (or bad), but I am definitely please I'm getting 2+ more mpg than I did 10k miles ago. It could simply be things are wearing into efficiency.?.

Many gear oils I have used have friction modifier in them off the shelf.

 

[justinB]

Many gear oils I have used have friction modifier in them off the shelf.

They do. I use Lucas Synthetic, just added a little extra.

 

[Jeepstin392]