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What fuel for 5.7

Gman

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New E15 gas fueling confusion at the pump
It used to be the only number you had to worry about at the gas pump was the price.

But a new type of gasoline is rolling out across Wisconsin, and it is not for everyone.

The new fuel is called E15 and contains 15 percent ethanol, compared to the 10 percent in regular unleaded.

Though E15 is sold at the same pump consumers are used to, government warnings say it's not safe to use in every engine.

Joe Strazishar noticed the new fuel at an Oconomowoc KwikTrip earlier this summer and was confused.

"Number one, the name is very misleading," he said.

KwikTrip markets E15 under the name "Unleaded 88," a reference to the octane level of this blend of fuel.

On the pumps at KwikTrip, E15 is sold in the space that used to dispense 89 octane gas.

But "Unleaded 88" actually sells for a few cents less than the 87 octane fuel that comes out of the same pump.

The only thing explaining all this is a little orange sticker identifying "Unleaded 88" as E15.

"Their sign for 29 cent bananas is 100 times bigger than that 15 sticker," Strazishar said.

That warning label was created by the renewable fuel industry, which pushed for gas with a higher ethanol content.

The label was needed because E15 is not for everyone.

Nick Jarmusz from AAA Wisconsin said drivers need to do their homework before choosing the new fuel.

"You want to make sure you do your research and find out if it's approved for your vehicle. If it's not approved, you could be looking at some damage to your engine," Jarmusz said.

The orange warning label clearly states E15 is only for cars made after 2001.

But a warning letter from the Wisconsin DNR goes further, telling consumers to "consult the vehicle's owner manual to determine whether using E15 will affect its warranty."

Adding to the confusion is a federal law makes it flat-out illegal to use E15 gas in a list of engines.

E15 is off limits to motorcycles, buses and delivery trucks, off road vehicles, boats and snowmobiles, as well as yard tools like chainsaws, snowblowers and lawnmowers.

Joe Strazishar wishes KwikTrip had done a little more to help people like him understand the change.

While the company has been selling E15 for weeks under the name "Unleaded 88," it's still not ready to talk about it.

A spokesperson responded to a request for an interview by declining to talk about E15.

"We are still in the evaluation/testing phase, but feel like mid-September would be a good time to circle back."

To a confused consumer like Joe Strazishar, that's putting the cart before the horse.

"Consumers need to be prepared for that. They would have done a great service in actually doing it the other way around and say it's coming, it's coming," he said.

KwikTrip is not the only gas station rolling out E15 in Wisconsin, right now they're just the biggest.

The I-TEAM told KwikTrip when our story would air and asked for a chance to talk.

We never heard back.

Best advice: if you want to know if E15 is right for your car, call your dealer or mechanic.

The owners manual states E15 is a 'no go' for the Hemi.

There is no "E88".

https://afdc.energy.gov/fuels/ethanol_blends.html
 
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Grunkster

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can someone tell me where the manual states E15 is a no go? Afterall it IS 88 octane!
 

Gman

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My mistake:
Do not use E-85 flex fuel or ethanol blends greater than 15% in this engine.
Pages 556/557 in the manual. I remembered "Do not use...15% in this engine".

E15 should be OK. It will reduce your mileage.
 

AnthonyD1978

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Say I'm wrong all you want, but you guys are overly complicating this and @Grunkster is making it worse by putting things out as fact when they are wrong. It's very simple. The number after the E is the ethanol content of the fuel. With the remainder being fossil fuel.

E85 = 85% ethanol + 15% fossil fuel (no matter the octane). The vast majority of pump gas in the states has E10 (10% ethanol + 90% fossil fuel).

Some states will switch their blend depending on the season. With summer months having a higher E%. Here in the southwest that does not happen though. I've mixed my own gas for years in my tuned cars. Using fossil fuel (E10), race gas, and full E85. From a pure horsepower perspective it's hard to beat straight E85. I know my E85. I have a gas station 10 minutes from my house that has all 3 available straight out of the pumps. It's like fuel heaven.

Run what you want. E10 gas (pump gas) will not hurt the truck. Ethanol has many benefits and only one draw back (MPG). Do your own research.

My mistake:

Pages 556/557 in the manual. I remembered "Do not use...15% in this engine".

E15 should be OK. It will reduce your mileage.

If it says do not use 15% in the hemi then E15 would not be OK.
 
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Grunkster

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Take a deep breath Anthony! I said I was incorrect calling it E88....it is officially called E15. Kwik Trip just muddles the waters. But again, it is 15% ethanol...no more, no less
 

AnthonyD1978

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Take a deep breath Anthony! I said I was incorrect calling it E88....it is officially called E15. Kwik Trip just muddles the waters. But again, it is 15% ethanol...no more, no less


Sorry if I offended, but what you said was wrong and is going to cause someone to get stranded about a block from the gas station and then they will have to pay someone to drain their entire fuel tank. Probably by having to drop it out of the truck.
 

Grunkster

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ummm...actually it says "do not use fuel blends GREATER THAN 15%"....so 15% is fine
 

Grunkster

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so please explain how anyone is going to "get stranded" because of anything I said about E15??!! I corrected myself right away that it isn't "E88" (it is just labeled 88 octane at the KwikTrip pumps)
 

SpeedyV

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so please explain how anyone is going to "get stranded" because of anything I said about E15??!! I corrected myself right away that it isn't "E88" (it is just labeled 88 octane at the KwikTrip pumps)
I corrected you on that (post #59). But it sounds like nobody is getting stranded. And I think this OP's question was pretty much answered after the first reply ;)
 

MrHankbot

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I corrected you on that (post #59). But it sounds like nobody is getting stranded. And I think this OP's question was pretty much answered after the first reply ;)

And I mentioned that he was probably talking about E15 in post 56.

Since E88 doesn't exist, I don't think anyone is going to accidently fill their truck up with it. And if they fill up with 88 octane E15 it sounds like they'll be fine according to the manual.
 

AnthonyD1978

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ummm...actually it says "do not use fuel blends GREATER THAN 15%"....so 15% is fine

The other poster specifically stated that the manual said not to use 15% ethanol in the engine. Then stated in the same post that E15 is OK. They are the same thing. That's what I was correcting.

so please explain how anyone is going to "get stranded" because of anything I said about E15??!! I corrected myself right away that it isn't "E88" (it is just labeled 88 octane at the KwikTrip pumps)

Again, you originally stated E88. Not E15. I would make a safe guess that anything over E35 will get you stranded in the RAM. You should have corrected your original post.

And I mentioned that he was probably talking about E15 in post 56.

Since E88 doesn't exist, I don't think anyone is going to accidently fill their truck up with it. And if they fill up with 88 octane E15 it sounds like they'll be fine according to the manual.

Again, he should correct (edit) his original post. E88 may not exist, but E85 is close. ...."If that guy says E88 works then E85 must work fine".... Also keep in mind that E85 does not have to have 85% ethanol. It can vary depending on location and climate. I have seen E88 on my ethanol sensor. I have also seen E85 actually read ~E65. The same goes for any E% rating. Regulation allow it to vary a huge margin.

Bottom line there is a ton of misinformation in these posts about ethanol.
 
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Gman

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The other poster specifically stated that the manual said not to use 15% ethanol in the engine. Then stated in the same post that E15 is OK. They are the same thing. That's what I was correcting.
I corrected myself. I have no idea why you continue to keep this going.
 

AnthonyD1978

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I corrected myself. I have no idea why you continue to keep this going.

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Grunkster

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Anthony....JUST for you I have edited my posts!!:eek: Now you can please stop accusing me of STRANDING anyone in their new RAM??!!
 

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Haven’t ordered my truck yet, but when I do it will be getting 89 for the first 3000 miles for full break-in. After that an oil change and probably 87, try it out and if no difference I’ll stay with that. For towing , definitely 89 or higher.
 

Gman

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Haven’t ordered my truck yet, but when I do it will be getting 89 for the first 3000 miles for full break-in. After that an oil change and probably 87, try it out and if no difference I’ll stay with that. For towing , definitely 89 or higher.
Do you expect more ignition problems under the load of towing?

I can say that I'm enjoying not being required to buy premium fuel with my new truck. Filled up the 33 gallon tank with mid-grade (87 octane), 25.7 gallons. My previous vehicle had a total capacity of 26 gallons and my total expense was under $70. The station I often uses cuts off at $75 when you pay at the pump, and I usually had to start another transaction to completely fill up the Mercedes.

At some point after break in, I'll see how well the truck runs on regular.
 
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