Gladiator gas octane?

[ShadowsPapa]

'Well, that depends on your point of view. One reason (out of many) that the JT is my first Jeep, is the great mileage it gets, compared to all Jeep prior to the JL.'

The great mileage it gets??? Bahahahahahahaha. Wow.
The mileage is brutal and the least they could have done is put in a bigger tank.

18 is brutal? Really?
I do more than 20 in good weather (higher temps). That's better than any truck I've owned big or small and equals or beats my WJ - which isn't a brick sitting high in the air.
I agree the tank is puny, but the MPG ain't all that bad for a tall brick with plate glass for a windshield.

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[ShadowsPapa]

Where can you buy 100 octane? I know that it's available, I just don't know where to look.

Local race track...........?

 

[Pauliboy]

I had a 31 foot Class C motorhome .. Weighed 19,000 pounds or so ... Now that is a cinder block as opposed to a brick ...

That thing had a ford V10 engine and a 55 gallon tank ...

On a perfect day if keeping it at 55 or 60 that thing would see 9-10MPG ...

My JT sees 15.5 locally and 17-18 on the highway at 70 on winter gas. It sees 19+ (never 20) on summer gas at 65-70 ...

Now its a Mojave with MT tires and stock lift of 1 inch ... But mercy, this 15 locally hurts !!!

I dunno, maybe its good compared to some other things .. If it were "good" Id have hoped to see maybe 20 consistently ...

But this is my first world problem I guess ... Im driving around in a 50k truck, so maybe I should shut up ....

Im happy though and wouldnt change a thing ...

I'm getting 10 - 11 mpg locally

 

[fun2drum]

...I agree the tank is puny, but the MPG ain't all that bad for a tall brick with plate glass for a windshield.

Indeed. My MPG beats what I was getting with my Buick Enclave. The Enclave is about as aerodynamic as a big SUV can get, and has nowhere near the ability that my Gladiator has. Yet the Gladiator, which might as well be towing a parachute by comparison, goes further on a tank of 87 gas.

 

[Riccochet]

Where can you buy 100 octane? I know that it's available, I just don't know where to look.

AvGas is 100 octane, found at regional airports. PurplePower or Race is 110 octane, typically found near race tracks. E85 is 108 octane, but you need to be tuned for it.

 

[CMac]

I know. My only point was that no, the JT isn't an economy car, but compared to previous Jeeps, there is a reason to buy it for it's fuel savings.

Yup.

My YJ...4.2l, 258...had a 20 gallon tank....31x10.50 BFG's....you never, EVER took it past 230 miles per tank...lest you be sitting on the roadside. That....was shite mileage.

 

[MrZappo]

AvGas is 100 octane, found at regional airports. PurplePower or Race is 110 octane, typically found near race tracks. E85 is 108 octane, but you need to be tuned for it.

Avgas is not only 100 octane, it is also leaded.

Don't use Avgas in a modern engine.

Unleaded racing gas? Have at it. Although I wouldn't.

 

[DreamedofaJeepSomeday]

Shell 87 and a constant 22 mpg. Now at 5k miles. What am I doing right? Overland with auto.

Probably your driving style. Has a lot to do with it.

Be careful, though, I have had a couple members tell me it is impossible to get the mileage I report, questioning my veracity, I suppose. The old scenario "if I haven't experienced what you are reporting, it can't be true."

 

[ShadowsPapa]

Probably your driving style. Has a lot to do with it.

Be careful, though, I have had a couple members tell me it is impossible to get the mileage I report, questioning my veracity, I suppose. The old scenario "if I haven't experienced what you are reporting, it can't be true."

It's like the old bull crap of "it's solid axle, it will wander" or some other stuff that's so deeply rooted people can't get past it.
I had it happen to me with the MPG bit -they all but said I was lying. Then when I came back against calling me a liar it was "well, these read higher anyway, all Jeep speedometer and odometers are off by xx" so then I hooked up my Garmin and put a GPS app on my phone and set out to prove that one way or another and found my JT is SPOT ON. After 17 miles the JT's odometer agreed totally with my phone app and my Garmin GPS.
So there ya go - their arguments dispelled. My odometer and speedometer are totally accurate, not off by even a tenth of a mile after 17 miles and now dozens are also agreeing that these should not wander if all things are as designed.
Jeep has to sell to non-rock crawlers and non-mudders to survive in these times. Look at the consolidations and absorptions in the automotive world. Want to survive, you must sell to new mothers, people who dwell in LA and NYC and never leave town, and more.
Chrysler had to make changes years ago to the 4.0 because, gasp - women (and business men) were buying Jeeps all of a sudden and they were complaining of NOISE levels. Yes, the 4.0 was not a quiet engine! So they added a snubber to the timing chain, went with double roller chain, cast ridges and struts into the block to make it more rigid and less prone to being noisy, and other changes to quiet it down.
My brother almost always wears a tie and suit jacket to work at his business - but he's a Jeep driver. He'll not take it out in the mud - although he might drive it along the sandy beaches in Florida where they like to vacation. The Jeep must handle and drive nicely - and he's willing to spend some hefty bucks for 'em. His wife is even more refined must have Land Rovers.

But I've wandered again - Jeep must make these to sell to a wider variety than they sold to decades ago. They must burn almost any cheap fuel...........
Speaking of octane, fuel, etc. - I went to pick up pizza for supper last night - told my wife I was going to gas up while there because uconnect sent me an alert that my JT was less than 1/8 tank of fuel.
I never thought that much about it when not driving one of my Javelins - but last night I realized - every gas pump there was 87 octane. Nothing more, nothing else. So if you required anything over 87 - you were going to drive a ways.

 

[DreamedofaJeepSomeday]

Wow, as usual, there is a lot of meat in your post.

Although I certainly don't have any special knowledge, my guess it is the recirculating ball type of steering that results in the wishy-washy steering rather than the solid axle itself.

I think the introduction of the 4-door Wrangler was a pure stroke of genius on Chrysler's part. Prior to that, Jeeps had a relatively small but dedicated group of buyers that liked to go off-road, or just like the rugged open-air design.

With the 4-door JK, Jeep could suddenly reach out to a whole new group of buyers with a vehicle that could replace other popular SUVs, but with the added advantage of the cool factor. And add more dedicated Jeep enthusiasts who could enjoy the greater passenger capacity.

The JL added more modern features and the JT simply adds on to the marketing appeal with the capability of a mid-size pickup.

 

[DLAW]

87 is all you need in the stock Gladiator Pentastar. Paying for more is a waste for sure. It's not subjective. It's science.

As for ethanol...meh... vehicles these days are built for ethanol in mind. It's been around for long enough that we know it won't shorten the life of your engine or else it wouldn't have lasted this long. Ethanol is actually more damaging to your 2-cycle lawn equipment engines because of the periods of time sitting around and eating up all the synthetic tubes. Our street legal vehicles are not built like an Echo.

 

[ShadowsPapa]

87 is all you need in the stock Gladiator Pentastar. Paying for more is a waste for sure. It's not subjective. It's science.

As for ethanol...meh... vehicles these days are built for ethanol in mind. It's been around for long enough that we know it won't shorten the life of your engine or else it wouldn't have lasted this long. Ethanol is actually more damaging to your 2-cycle lawn equipment engines because of the periods of time sitting around and eating up all the synthetic tubes. Our street legal vehicles are not built like an Echo.

But some of them sound almost like my Echo trimmer and chain saw........ LOL

 

[DLAW]

But some of them sound almost like my Echo trimmer and chain saw........ LOL

You're not kidding. That red-lining RING NG NG NG NG NG NG NG awful noise as some A hole does donuts in the middle of the night.

 

[Whiteknight]

I confess, and know I have done a bad thing for reasons I thought, was going to be; pulling a tralior with my JK on it. My 35x12.5 17' General graber x3 weigh in at 70 pounds and that's just the rubber. Preium gets me over 16 mpg at speeds around 70 mph. My rims are a bit much too, so forgive my lack of knowlege. While in Moab, I was very please with the abiliy, so I don't really care as much now. It's the fun factor I want. Better fuel economy would be acceptable without sacrifice.

 

[GEETCH]

A lot of good information on this page, however I will have to be running a minimum of 91 octane. It is required for the magnuson supercharger, I will be having that installed in mid April and they highly suggest running at least a full tank of it prior to installation. so after I burn off whatever the dealer has in it, it will be most likely 93 for me lol.

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