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  #25  
Old 09-07-2015, 12:28 PM
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Re: For those with the Hemi engine, 87 or 89 octane?

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Originally Posted by MDBones View Post
And FCA states for the 5.7L...

"The manufacturer recommends the use of 89 octane for optimum performance. The use of premium gasoline is not recommended, as it will not provide any benefit over regular gasoline in these engines."
Bingo!

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  #26  
Old 09-07-2015, 04:00 PM
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Re: For those with the Hemi engine, 87 or 89 octane?

I prefer to use "non-ethanol" fuel in my cars, the JGC included. So, my Hemi gets fed 91 octane non-ethanol gas.....
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  #27  
Old 09-07-2015, 04:18 PM
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Re: For those with the Hemi engine, 87 or 89 octane?

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Originally Posted by leadfoot4 View Post
I prefer to use "non-ethanol" fuel in my cars, the JGC included. So, my Hemi gets fed 91 octane non-ethanol gas.....
I would buy that fuel in a heartbeat,........ If it were available.
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  #28  
Old 09-07-2015, 04:33 PM
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Re: For those with the Hemi engine, 87 or 89 octane?

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Originally Posted by leadfoot4 View Post
I prefer to use "non-ethanol" fuel in my cars, the JGC included. So, my Hemi gets fed 91 octane non-ethanol gas.....
Non-ethanol fuel isnt even an option for 90% of this country. I couldn't even tell you the last time I saw ethanol free gas around here.
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Old 09-07-2015, 07:10 PM
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Quote:
Originally Posted by JTS97Z28 View Post

Non-ethanol fuel isnt even an option for 90% of this country. I couldn't even tell you the last time I saw ethanol free gas around here.
We better start stocking up all the good stuff before it all disappears. Mad Max style.
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  #30  
Old 09-07-2015, 11:17 PM
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Re: For those with the Hemi engine, 87 or 89 octane?

In Miami Beach, we have the REC 90 (90 octane no ethanol) available because of boat engines... I used it, have a friend who only uses it, but I mainly use 89 with up to 10% ethanol though.
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  #31  
Old 09-09-2015, 12:44 PM
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Re: For those with the Hemi engine, 87 or 89 octane?

This might be helpful, with the ethanol free situation.....


http://pure-gas.org/index.jsp
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  #32  
Old 09-10-2015, 06:41 PM
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Re: For those with the Hemi engine, 87 or 89 octane?

Woohoo, there is a place near me on that list that serves Ethanol free fuel!
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  #33  
Old 09-10-2015, 09:25 PM
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Re: For those with the Hemi engine, 87 or 89 octane?

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Originally Posted by leadfoot4 View Post
This might be helpful, with the ethanol free situation.....

http://pure-gas.org/index.jsp

Quote:
Originally Posted by sur_real1 View Post
Woohoo, there is a place near me on that list that serves Ethanol free fuel!
The biggest problem with this stuff is not just availability, it's cost. Just click on some of the vendors, and you'll see what I mean. 91 Octane Premium currently is going for around $2.60 a gallon by me. This stuff can sell for upward of over $6.50 A GALLON! I can possibly see .50 cents a gallon more. But no one is going to pay almost triple for what little benefit they're going to realize from alcohol free gasoline. Especially when some of these newer vehicles have fuel systems that are designed to safely burn up to 85% Ethanol.
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Old 09-11-2015, 07:15 AM
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Re: For those with the Hemi engine, 87 or 89 octane?

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Originally Posted by billt View Post
The biggest problem with this stuff is not just availability, it's cost. Just click on some of the vendors, and you'll see what I mean. 91 Octane Premium currently is going for around $2.60 a gallon by me. This stuff can sell for upward of over $6.50 A GALLON! I can possibly see .50 cents a gallon more. But no one is going to pay almost triple for what little benefit they're going to realize from alcohol free gasoline. Especially when some of these newer vehicles have fuel systems that are designed to safely burn up to 85% Ethanol.

I guess it depends on where you live, and how many gas stations there are in your area, that sell the ethanol-free gasoline. In my area, one of the "convenience store/gas station" chains, operating under the 'Fastrack' name, has been selling the ethanol free, 91 octane fuel, as their "normal" premium gas, for several years. Yesterday, it was $2.89/gallon.

One of the Mobil store/stations in my area recently began selling 91 octane, ethanol-free, and they're "gouging", IMHO, at $3.29/gal. Another smaller, privately owned, store/station in my area, that sell Sunoco gas, began selling the 91 ethanol-free for $3.09/gal, and they have a "Sunday Special", where all their gas is discounted by a nickel a gallon.
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  #35  
Old 09-11-2015, 07:51 AM
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Re: For those with the Hemi engine, 87 or 89 octane?

When I lived in Lake Havasu City, Arizona back in the 90's, which is the hot boat capital of the country, a few of the gas stations there sold AV Gas for the guys who were running supercharged, high performance boat engines. It was high priced because people would use it in their cars, hot rods, and motorcycles. So there was a motor vehicle gas tax attached to it as well. It was selling back then for around $2.35 a gallon. But that was when unleaded 87 Regular was still a few cents under a buck. The airport will not pump it into anything but an airplane fuel tank. No boats, cars, or cans.

The point being in all of this, is I question how much "better", "pure gasoline" really is? Or even IF it is. You have vehicles that have been running 10% Ethanol for years, and hundreds of thousands of miles in their cars and trucks. I'm one of them. Most all of them don't burn a drop of oil, and still deliver good performance. So in reality, what would they have benefitted if they had run non Ethanol "pure" gasoline instead?

I remember back when they took Tetraethyl Lead out of gasoline in the late 70's and early 80's. I had just purchased a brand new 1978 Kawasaki KZ-1000 motorcycle, that the dealer told me to ONLY burn LEADED PREMIUM in. Within a year it was unavailable, so I switched to unleaded Premium. I had no choice. I was concerned, so I called Kawasaki. All of a sudden it was, "perfectly fine" to use it. The engine ran much better. The plugs fouled less and lasted longer, and the bikes performance improved remarkably.

While I agree in concept that, "pure gasoline" would be better in theory. I think the hard core reality is it doesn't mean a damn thing in the real world. Anymore than all of the stories of how engines were going to go to hell because we stopped putting lead in gas. I have yet to hear of a late model vehicle prematurely experiencing engine failure that could be directly attributed to the burning of 10% Ethanol gasoline. Actually, in the colder climates it may help in reducing moisture and condensation in the fuel system. After all, "HEET" is nothing more than an alcohol based fuel additive to prevent gas line freeze. People have been using it for decades.
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  #36  
Old 09-12-2015, 02:31 PM
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Re: For those with the Hemi engine, 87 or 89 octane?

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Originally Posted by billt View Post
While I agree in concept that, "pure gasoline" would be better in theory. I think the hard core reality is it doesn't mean a damn thing in the real world. Anymore than all of the stories of how engines were going to go to hell because we stopped putting lead in gas. I have yet to hear of a late model vehicle prematurely experiencing engine failure that could be directly attributed to the burning of 10% Ethanol gasoline. Actually, in the colder climates it may help in reducing moisture and condensation in the fuel system. After all, "HEET" is nothing more than an alcohol based fuel additive to prevent gas line freeze. People have been using it for decades.
Absorbing water into the gasoline is bad, not good. If you look at the studies, pure gasoline has a potential life of many months or even years before it is considered bad. E10 fuel has a life of only a few months, three being the common number I see repeatedly mentioned, because ethanol wants to absorb moisture.

Will most people have a real world problem with that though? No. Most will be driving enough that the vehicle won't be sitting that long with the unspent fuel in the tank.

I've seen E10 fuel decrease gas mileage by a slight percentage, usually 1 MPG or 2. Some vehicles seem to be affected by it more than others. My brother-in-law's late-2000s F-150 with the 5.4 V8 doesn't seem to care if its pure gas, E30, or E10. It drives the same no matter what, same mileage, same power. My 4.7L V8 in my 2010 Dakota suffered a little in the MPG department, but other than that, didn't really affect it until I purchased a Superchips programmer for it.

Will E10 cause failures in the newer cars/SUVs/trucks? No, and it does help emissions, or so the studies tell us.

HEET is primarily methanol, which behaves differently than ethanol. Its like comparing apples and oranges. Yes, they are both fruit, but they are definitely very different.
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