Vi, usually you're right on, but in this you're off the mark.Originally posted by: vi_edit
*Most* will only have the 89 as the ethanol blend. The 87 and premium are ethanol free.
But it's really dependent on the station. Iowa has a lot more ethanol support than Illinois does.
Every midwestern gas station I've been to (and I grew up there and lived there for 22 years) had one sticker per pump that said something like "This gasoline contains 10% ethanol by volume". The sticker was usually in the middle of the pump, but it applied to all grades.Originally posted by: bluestrobe
Usually it's only in 89 or gas with 10% added. Usually the mid priced fuel. It's not in all fuels here in the Midwest (IA, on NE boarder here). If they add it they have to clearly mark it so at the pump. Ethanol isn't something they can just sneak into your gasoline.
Originally posted by: Zenmervolt
Vi, usually you're right on, but in this you're off the mark.Originally posted by: vi_edit
*Most* will only have the 89 as the ethanol blend. The 87 and premium are ethanol free.
But it's really dependent on the station. Iowa has a lot more ethanol support than Illinois does.
Gas stations get 89 by mixing the 87 and the premium at the pump. There are no separate tanks for midgrade. If the midgrade is 10% ethanol, then both the 87 and the premium are too.
Gasoline was 10% Ethanol everywhere in Ohio even 10 years ago. This is nothing new at all.
ZV
Originally posted by: vi_edit
Originally posted by: Zenmervolt
Vi, usually you're right on, but in this you're off the mark.Originally posted by: vi_edit
*Most* will only have the 89 as the ethanol blend. The 87 and premium are ethanol free.
But it's really dependent on the station. Iowa has a lot more ethanol support than Illinois does.
Gas stations get 89 by mixing the 87 and the premium at the pump. There are no separate tanks for midgrade. If the midgrade is 10% ethanol, then both the 87 and the premium are too.
Gasoline was 10% Ethanol everywhere in Ohio even 10 years ago. This is nothing new at all.
ZV
If that's the case, then can you explain why I consistently got 10% better fuel economy going with the 87 (non-ethanol by my thoughts) vs. the 89 grade with the ethanol blend sticker on it? I have talked to numerous people and they had similar experiences. They got consistently worse fuel economy with the 89 blend vs. the 87 non blend.
Originally posted by: vi_edit
Originally posted by: Zenmervolt
Vi, usually you're right on, but in this you're off the mark.Originally posted by: vi_edit
*Most* will only have the 89 as the ethanol blend. The 87 and premium are ethanol free.
But it's really dependent on the station. Iowa has a lot more ethanol support than Illinois does.
Gas stations get 89 by mixing the 87 and the premium at the pump. There are no separate tanks for midgrade. If the midgrade is 10% ethanol, then both the 87 and the premium are too.
Gasoline was 10% Ethanol everywhere in Ohio even 10 years ago. This is nothing new at all.
ZV
If that's the case, then can you explain why I consistently got 10% better fuel economy going with the 87 (non-ethanol by my thoughts) vs. the 89 grade with the ethanol blend sticker on it? I have talked to numerous people and they had similar experiences. They got consistently worse fuel economy with the 89 blend vs. the 87 non blend.
Originally posted by: ballmode
Does that 10% go to the midgrade and premium as well?
Originally posted by: silverpig
Originally posted by: vi_edit
Originally posted by: Zenmervolt
Vi, usually you're right on, but in this you're off the mark.Originally posted by: vi_edit
*Most* will only have the 89 as the ethanol blend. The 87 and premium are ethanol free.
But it's really dependent on the station. Iowa has a lot more ethanol support than Illinois does.
Gas stations get 89 by mixing the 87 and the premium at the pump. There are no separate tanks for midgrade. If the midgrade is 10% ethanol, then both the 87 and the premium are too.
Gasoline was 10% Ethanol everywhere in Ohio even 10 years ago. This is nothing new at all.
ZV
If that's the case, then can you explain why I consistently got 10% better fuel economy going with the 87 (non-ethanol by my thoughts) vs. the 89 grade with the ethanol blend sticker on it? I have talked to numerous people and they had similar experiences. They got consistently worse fuel economy with the 89 blend vs. the 87 non blend.
Your engine is tuned to run on 87?
Originally posted by: mrSHEiK124
Originally posted by: silverpig
Originally posted by: vi_edit
Originally posted by: Zenmervolt
Vi, usually you're right on, but in this you're off the mark.Originally posted by: vi_edit
*Most* will only have the 89 as the ethanol blend. The 87 and premium are ethanol free.
But it's really dependent on the station. Iowa has a lot more ethanol support than Illinois does.
Gas stations get 89 by mixing the 87 and the premium at the pump. There are no separate tanks for midgrade. If the midgrade is 10% ethanol, then both the 87 and the premium are too.
Gasoline was 10% Ethanol everywhere in Ohio even 10 years ago. This is nothing new at all.
ZV
If that's the case, then can you explain why I consistently got 10% better fuel economy going with the 87 (non-ethanol by my thoughts) vs. the 89 grade with the ethanol blend sticker on it? I have talked to numerous people and they had similar experiences. They got consistently worse fuel economy with the 89 blend vs. the 87 non blend.
Your engine is tuned to run on 87?
His ECU/knock sensors don't care for the higher knock resistance the 89 octane has and the engine just has a harder time combusting it? You're supposed to put the recommended octane gas in your car for a reason, it was designed to run on it specifically.
Originally posted by: vi_edit
If that's the case, then can you explain why I consistently got 10% better fuel economy going with the 87 (non-ethanol by my thoughts) vs. the 89 grade with the ethanol blend sticker on it? I have talked to numerous people and they had similar experiences. They got consistently worse fuel economy with the 89 blend vs. the 87 non blend.
Again, there are no tanks for midgrade. Midgrade is created at the pump by blending the low-octane and high-octane fuel.Originally posted by: nakedfrog
Originally posted by: vi_edit
If that's the case, then can you explain why I consistently got 10% better fuel economy going with the 87 (non-ethanol by my thoughts) vs. the 89 grade with the ethanol blend sticker on it? I have talked to numerous people and they had similar experiences. They got consistently worse fuel economy with the 89 blend vs. the 87 non blend.
Lived in the same city as vi_edit, only for a much longer period, and noticed the exact same effect on multiple vehicles. 89 octane E10 always yields about 10% less mpg versus 87 octane.
Originally posted by: Zenmervolt
Again, there are no tanks for midgrade. Midgrade is created at the pump by blending the low-octane and high-octane fuel.Originally posted by: nakedfrog
Originally posted by: vi_edit
If that's the case, then can you explain why I consistently got 10% better fuel economy going with the 87 (non-ethanol by my thoughts) vs. the 89 grade with the ethanol blend sticker on it? I have talked to numerous people and they had similar experiences. They got consistently worse fuel economy with the 89 blend vs. the 87 non blend.
Lived in the same city as vi_edit, only for a much longer period, and noticed the exact same effect on multiple vehicles. 89 octane E10 always yields about 10% less mpg versus 87 octane.
ZV
Originally posted by: nakedfrog
Originally posted by: Zenmervolt
Again, there are no tanks for midgrade. Midgrade is created at the pump by blending the low-octane and high-octane fuel.Originally posted by: nakedfrog
Originally posted by: vi_edit
If that's the case, then can you explain why I consistently got 10% better fuel economy going with the 87 (non-ethanol by my thoughts) vs. the 89 grade with the ethanol blend sticker on it? I have talked to numerous people and they had similar experiences. They got consistently worse fuel economy with the 89 blend vs. the 87 non blend.
Lived in the same city as vi_edit, only for a much longer period, and noticed the exact same effect on multiple vehicles. 89 octane E10 always yields about 10% less mpg versus 87 octane.
ZV
I'm just telling you my observable, repeatable results with different vehicles.
89 octane is also frequently cheaper, I've heard that this is because of tax breaks on E10.
If the 89 octane was just 87 and 91 mixed together, why would it be cheaper than the others?
Originally posted by: Zenmervolt
Every midwestern gas station I've been to (and I grew up there and lived there for 22 years) had one sticker per pump that said something like "This gasoline contains 10% ethanol by volume". The sticker was usually in the middle of the pump, but it applied to all grades.
As I said, there are no separate tanks for mid-grade. It is always created by blending premium and regular in the pump itself.
ZV
Originally posted by: ballmode
Does that 10% go to the midgrade and premium as well?