Your gas...

[sdeeter19555]

Well, this all isn't new. Ethanol has been a part of the gasoline fuel landscape for over 40 years. If the various ratios that may be in E10 were going to be a problem, then we would see vehicles broke down in rows along the roadways. And we would sure be hearing about it on the nightly news, since a vehicle is probably the second most expensive investment in something that the average person makes. Except for forums or when EPA and politicians are running for office and such are discussing things, one hardly even hears about ethanol. Sure isn't a topic that is heavily discussed every morning at the work place or coffee shop.

My point is that this was sold as "up to 10%", and such a small amount ran me up to 15% from zero. I have no issue with the alcohol in gas, but where is the quality control for content?

 

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[Dnt]

Does the onboard computer read and output octane level for the fuel also?

[Cowpie]

Well, while the terminal may indeed have quality control in place, they cannot overcome the possibility of the tanker being loaded did not have some higher blend, like E85, still in the tank from a previous delivery when the E10 is loaded. And some pumps use blending of separate E85 into the normal gas stream to create E10 at the pump. It is not all that common, but keeping E85 in a separate, better protected from water contamination tank and then mixing as it is dispensed can keep fuel in more stable condition. Some fuel stations are doing it that way. There are just too many variables that we aren't aware of to cause a deviation in ethanol content from a a strict 10% or less.

[sdeeter19555]

Does the onboard computer read and output octane level for the fuel also?

No, just alcohol as far as the options I have available to read.

 

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Well, while the terminal may indeed have quality control in place, they cannot overcome the possibility of the tanker being loaded did not have some higher blend, like E85, still in the tank from a previous delivery when the E10 is loaded. And some pumps use blending of separate E85 into the normal gas stream to create E10 at the pump. It is not all that common, but keeping E85 in a separate, better protected from water contamination tank and then mixing as it is dispensed can keep fuel in more stable condition. Some fuel stations are doing it that way. There are just too many variables that we aren't aware of to cause a deviation in ethanol content from a a strict 10% or less.

We have nearly ZERO e85 stations around...blending at the pump is unlikely.

 

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[Cowpie]

Just looked and there is E85 in Allentown, Chadd Ford, Philly, and Southhampton, etc. Tankers cover a pretty wide swath for deliveries. Reading is not that far from many of these locations and it could be quite probable that a tankers service the same general area. I used to tank fuel years ago and I would cover a 75 mile area. True, blending at pump not a real probability where you are, but the other factors come into play. A tanker will carry anything from regular to premium, various ethanol blends, diesel and kerosene, racing fuel, and jet fuel. Whatever is needed, what ever tanker can make the delivery in the time needed, and who the customer is and what terminal they are purchasing from.

[Colossus]

Ditto, Cliff. It's unfortunate, but from time to time there will be some bad or improper fuel that gets mixed in. It's when you have unleaded that gets loaded into a Diesel ground tank or vice-versa that things really get screwed up. That's why the stations have to have insurance to cover situations where damage occurs to engines as a result of incorrect fuel being loaded into the ground tanks.(or above ground in some cases)

[SnakeEyeSS]

My point is that this was sold as "up to 10%", and such a small amount ran me up to 15% from zero. I have no issue with the alcohol in gas, but where is the quality control for content?

 

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Report it to whoever checks the pumps. There is a sticker on every pump showning testing(at least are here) to show if the pump is calibrated correctly. They will at least point you in the right direction. Sam's club had to recall gas frorom their stations around here because the the exact same thing, it had the wrong quantity of ethanol mixed in.

[Cowpie]

Most times, that testing is more about volume accuracy at pumps. Usually a State's Weights and Measures staffer is what checks pumps and is only concerned with accuracy of fuel delivery. It is very rare that they actually check for ethanol percentage. Same for the diesel side... it is rare that they check to make sure that diesel is ULSD variety for on road use.