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Old 04-28-2013, 06:55 PM   #61
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cindy crosby... I believe I speak for all flyers fans when I say we hate him. but with his six missing teeth he will now look a little tougher. but only a little

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Old 04-28-2013, 07:07 PM   #62
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cindy crosby... I believe I speak for all flyers fans when I say we hate him. but with his six missing teeth he will now look a little tougher. but only a little
Haha it's all good man, we'll see you in the playoffs. Oh wait!!
Ha

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Old 04-28-2013, 07:16 PM   #63
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Haha it's all good man, we'll see you in the playoffs. Oh wait!!
Ha
i knew i would hear that. maybe next year
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Old 05-09-2013, 07:43 PM   #64
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Just curious which gas runs smoothest on the 2012 model 87,89 or 93? I know every engine stock tunning is optimized for a certain fuel.

Still some newbie questions left .
I bought marked premium 91 once by accident (had no idea that it's tax free fuel for farmers) and it made ZERO difference. I drove the same stretch of highway (50 mile drive), in the same direction, with full tank and almost identical weather, and the computer showed same average consumption, down to the decimal! So use 87 unless in really hot climates where MAYBE you'll want 89 to reduce pinging.
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Old 05-09-2013, 08:22 PM   #65
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100 octane Airplane fuel is guaranteed to drain your wallet!
All that the current factory stock 4.0, 3.8, and 3.6 need and is designed to use is 87 octane.
If anybody tells you different, then they are just spending your money. So watch out for the BIG SPENDERS..............
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Old 05-09-2013, 09:10 PM   #66
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Add 91 or 93 premium then add a gallon of outlaw octane booster. Your high horsepower indy motor will be tick free and have oodles of giddy up.
Pfffff... Octane booster.... Just get a couple galon jugs of pure Toluene from the paint section at home depot, add a dash of engine oil and throw it in the tank on top of your regular fuel! If it was good enough for the high compression turbo F1 cars in the 80s, imagine what it can do in a new pornstar!!
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Old 05-09-2013, 10:37 PM   #67
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87 octane is all that is needed in a non-modified wrangler engine.
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Old 05-10-2013, 06:16 AM   #68
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I love gas threads almost as much as oil threads.

Use what the manual says. Anything else, well, it's your money to piss away.
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Old 05-10-2013, 10:03 AM   #69
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Well, now I wish I wouldn't have read this thread. I always get my gas at Costco and they have two options. 87 or 91. I've always gotten 91 since my cars asked for it, it's a mental thing getting 87 with the wrangler. Since I'm in Phoenix, should I be ok with 91? Costco gas started using a new detergent so I'm hoping this keeps any carbon build up down.

I will try 87 on my next fill up and see if I get any noticeable pinging since right now it purrrrrssssss.
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Old 05-10-2013, 10:11 AM   #70
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mine runs on Liberal tears.
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Old 05-10-2013, 10:19 AM   #71
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Still shaking my head!

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Originally Posted by Strokerswild View Post
I love gas threads almost as much as oil threads.

Use what the manual says. Anything else, well, it's your money to piss away.
Agreed on both points! The problem is too many owners are so sure that high octane fuel must give them more power...more fuel efficiency...more mpg... So, when they try it for a few tanks, or a few weeks, or whatever, they just know that they see the difference that supports their idea. Sure, they'll swear that they are driving the exact same way, over the exact same roads. But, unless you're on a closed course, in a controlled environment...And then there's the psych factor that influences your driving when doing personal testing.

The bottom line is this:

Octane is pretty much for one thing...it prevents pre-detonation in high compression motors.

It is not for added horsepower or fuel efficiency! So, unless you've done some major mods to you engine that seriously increased your compression ratio, you really are wasting your money. Even the oil companies will tell you the same thing! And, make no mistake, they definitely want your money!
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Old 05-10-2013, 10:31 AM   #72
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I kind of disagree with the general consensus of this thread. Motors today have variable valve timing and will adjust to specific octanes and situations. I personally think running 87 makes my car drive a little choppier and filled up last tank with 93, although power is the same I do sense the motor to be a bit smoother. 87 minimum octane is a new requirement by the government which is why the manual states it. Who ever thinks running 93 octane will cause damage over time is completely wrong.
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Old 05-10-2013, 10:32 AM   #73
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Additives!

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Well, now I wish I wouldn't have read this thread. I always get my gas at Costco and they have two options. 87 or 91. I've always gotten 91 since my cars asked for it, it's a mental thing getting 87 with the wrangler. Since I'm in Phoenix, should I be ok with 91? Costco gas started using a new detergent so I'm hoping this keeps any carbon build up down.

I will try 87 on my next fill up and see if I get any noticeable pinging since right now it purrrrrssssss.
Additives are the reason to purchase one gas or another! All gasoline pretty much starts out the same, coming from your local distributor. What separates one fuel from another is the additives selected and paid for by a given company. Whether it's one of the big boys (Shell, Exxon, Chevron, etc.) or a local franchise, the fuel starts out the same. Each given company has a specific formula that they order from the local distributor. The distributor then adds a given "blend" and that fuel is delivered to the pump. Those additives a what determines how your fuel burns, helps to keep your system clean, etc. Octane does NOT do this!

So, if you want to spend more at the pump for a legitimate reason, spend it on the fuel with the best additives
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Old 05-10-2013, 10:35 AM   #74
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Quote:
Originally Posted by mpjdrizzt View Post
Additives are the reason to purchase one gas or another! All gasoline pretty much starts out the same, coming from your local distributor. What separates one fuel from another is the additives selected and paid for by a given company. Whether it's one of the big boys (Shell, Exxon, Chevron, etc.) or a local franchise, the fuel starts out the same. Each given company has a specific formula that they order from the local distributor. The distributor then adds a given "blend" and that fuel is delivered to the pump. Those additives a what determines how your fuel burns, helps to keep your system clean, etc. Octane does NOT do this!

So, if you want to spend more at the pump for a legitimate reason, spend it on the fuel with the best additives
How do we know the distributor is actually adding the blend or isn't distributing it to everyone? Someone on here mentioned they drove a fuel delivery truck for a living. He would fill up at the fuel farm and drive to various gas stations and deliver. All the same gas.
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Old 05-10-2013, 10:41 AM   #75
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As the owner of a gas station, I've tested all 3 octane levels that we sell and I can say that there's no real benefit of putting in mid grade or premium in your tank. My tests were run by driving each grade for 4 tanks each and had gone for several thousand miles during the course of the test. The milage gain by using either of the plus grades was minimal and it varied depending on the winds and terrain. Some tanks I'd get a 1 to 2 mile gain, but others would show a similar loss.

NOW AS A GAS STATION OWNER I HIGHLY RECOMMEND THAT YOU BUY PREMIUM ONLY IF YOU STOP AT MY BUSINESS AND MAKE SURE YOU FILL YOUR JEEP COMPLETELY HERE. I tend to be somewhat of a whore and I like selling my highest grade because it also has the highest profit margin for me. While I pay a 10˘/gallon more for premium, I charge 40˘ more/gallon for it. Pretty much a standard practice in the industry. Sorry.
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Old 05-10-2013, 10:43 AM   #76
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As the owner of a gas station, I've tested all 3 octane levels that we sell and I can say that there's no real benefit of putting in mid grade or premium in your tank. My tests were run by driving each grade for 4 tanks each and had gone for several thousand miles during the course of the test. The milage gain by using either of the plus grades was minimal and it varied depending on the winds and terrain. Some tanks I'd get a 1 to 2 mile gain, but others would show a similar loss.

NOW AS A GAS STATION OWNER I HIGHLY RECOMMEND THAT YOU BUY PREMIUM ONLY IF YOU STOP AT MY BUSINESS AND MAKE SURE YOU FILL YOUR JEEP COMPLETELY HERE. I tend to be somewhat of a whore and I like selling my highest grade because it also has the highest profit margin for me. While I pay a 10˘/gallon more for premium, I charge 40˘ more/gallon for it. Pretty much a standard practice in the industry. Sorry.
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Old 05-10-2013, 10:43 AM   #77
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How do we know the distributor is actually adding the blend or isn't distributing it to everyone? Someone on here mentioned they drove a fuel delivery truck for a living. He would fill up at the fuel farm and drive to various gas stations and deliver. All the same gas.
In New Mexico we get tested twice a year for our octane levels. They do it on a random basis according to a computer generated list and we've been tested twice in the same month as a method to make sure we don't cheat right after testing. Not worth cheating to the station.
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Old 05-10-2013, 10:45 AM   #78
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How do we know the distributor is actually adding the blend or isn't distributing it to everyone? Someone on here mentioned they drove a fuel delivery truck for a living. He would fill up at the fuel farm and drive to various gas stations and deliver. All the same gas.
As a delivery driver, he's carrying more than one blend on any given run. This is why you will see the "same" truck delivery gasoline to different gas stations. The tank is divided into different compartments for the separate blends. A lot of people say a lot of different things...I know so and so did such and such... IF someone actually did deliver the wrong fuel, there are consequences. Very large amounts of money are being spent for any given fuel delivery, and each customer expects to receive that for which he has paid. As for the big boys, they pay even more to have proper additives in their fuel. They spend copious amounts of money on advertisement as well as labeling their pumps. Failure to deliver an expected blend could cost them dearly.
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Old 05-10-2013, 10:46 AM   #79
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Originally Posted by PecosRiver View Post
In New Mexico we get tested twice a year for our octane levels. They do it on a random basis according to a computer generated list and we've been tested twice in the same month as a method to make sure we don't cheat right after testing. Not worth cheating to the station.
I was referring to the additive blend (like detergents), not octane.
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Old 05-10-2013, 10:50 AM   #80
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I was referring to the additive blend (like detergents), not octane.
My mistake. I'm independent so that info doesn't apply to me. They sell me by grade, not additives.
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Old 05-10-2013, 10:57 AM   #81
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Rockin the 85 octane here at 4600 ft elevation
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Old 05-10-2013, 11:21 AM   #82
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Originally Posted by mpjdrizzt View Post
Additives are the reason to purchase one gas or another! All gasoline pretty much starts out the same, coming from your local distributor. What separates one fuel from another is the additives selected and paid for by a given company. Whether it's one of the big boys (Shell, Exxon, Chevron, etc.) or a local franchise, the fuel starts out the same. Each given company has a specific formula that they order from the local distributor. The distributor then adds a given "blend" and that fuel is delivered to the pump. Those additives a what determines how your fuel burns, helps to keep your system clean, etc. Octane does NOT do this!

So, if you want to spend more at the pump for a legitimate reason, spend it on the fuel with the best additives
I trust Costco uses a quality additive since everything else they do is top notch in my book. I know they did a lot of construction (I'm assuming replacing something to do with the pumps) when they moved to the additives. Since both grades they sell have it, I'm gonna switch over to 87, save some money, and hopefully notice ZERO difference.
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Old 05-10-2013, 11:22 AM   #83
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Old 05-10-2013, 12:06 PM   #84
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Originally Posted by BacaraJKU View Post
Well, now I wish I wouldn't have read this thread. I always get my gas at Costco and they have two options. 87 or 91. I've always gotten 91 since my cars asked for it, it's a mental thing getting 87 with the wrangler. Since I'm in Phoenix, should I be ok with 91? Costco gas started using a new detergent so I'm hoping this keeps any carbon build up down.

I will try 87 on my next fill up and see if I get any noticeable pinging since right now it purrrrrssssss.
I also live in the Phoenix area and use mainly Costco gas. I use it in my Escalade and 2013 Rubicon and have always had good luck using their 87 octane. The higher octane has no advantage when your wrangler is designed to run on 87 octane.
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Old 05-10-2013, 12:09 PM   #85
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Old 05-10-2013, 12:26 PM   #86
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I also live in the Phoenix area and use mainly Costco gas. I use it in my Escalade and 2013 Rubicon and have always had good luck using their 87 octane. The higher octane has no advantage when your wrangler is designed to run on 87 octane.
It's designed to take minimum 87 octane, running 89,91, or 93 will not do any harm.
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Old 05-10-2013, 03:46 PM   #87
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It's designed to take minimum 87 octane, running 89,91, or 93 will not do any harm.
Please re-read my post, because I have not said that it will harm your engine, but rather there is no advantage to using higher octane gas in a non-modified engine!
We are talking about two entirely different things here!
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Old 05-11-2013, 08:13 AM   #88
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I always try to use a brand that is TOP TIER certified and I stick with what is recommended in the owner's manual. My 2013 Jeep calls for 87 octane, one of my cars calls for 89 mid-grade, another car and my motorcycle specify 91 premium.
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Old 05-12-2013, 12:30 AM   #89
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Put the cheapest in. Trust me, after 40K one way or the other your Pentastar doesn't care. With 3 vehicles with Pents in them I should know. Next people will be asking which body wax will increase their gas mileage. It's a Jeep. Not a Lamborghini.
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Old 05-12-2013, 01:26 AM   #90
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Runs the same any octane.

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