Midgrade 89 Octane ?
- Thread starter Kjmack
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Originally Posted by mk378
That is true. 89 is a 1:2 mixture of 93 and 87, not 1:1.
It used to be that you could save money by buying the appropriate amounts of regular and premium and letting them mix in your tank.
You would have to look at the price on the pump. Normally it still is more expensive every time I've seen the price difference around here. Normally it's more like 30 cents extra for premium and 89 is 15 cents extra. But the mixing is really just 10 cents extra. So you could just do two transactions to get the same mix and save yourself 5 cents a gallon.
That is true. 89 is a 1:2 mixture of 93 and 87, not 1:1.
It used to be that you could save money by buying the appropriate amounts of regular and premium and letting them mix in your tank.
You would have to look at the price on the pump. Normally it still is more expensive every time I've seen the price difference around here. Normally it's more like 30 cents extra for premium and 89 is 15 cents extra. But the mixing is really just 10 cents extra. So you could just do two transactions to get the same mix and save yourself 5 cents a gallon.
And the ratio is changed if the premium grade is rated 91 octane.
So you're saying you think the pricing controls the mixing ratio not another setting on the pump?
My buddy mixes since around me 89 is only 10 cents cheaper than super, and about 30-40 cents more than regular. A Delta by me is 2.53, 2.91, and 3.01 right now, so a 14 cent savings by DIY blend.
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Originally Posted by Kjmack
Well at my BP station 87=2.39
89=2.74
93=3.19
That would tell Me it's a 50/50 mix not 2:1
LOL!
If it truly was a 50:50 mix, then midgrade would be 90 octane.
Well at my BP station 87=2.39
89=2.74
93=3.19
That would tell Me it's a 50/50 mix not 2:1
LOL!
If it truly was a 50:50 mix, then midgrade would be 90 octane.
Originally Posted by Quattro Pete
Originally Posted by Kjmack
Well at my BP station 87=2.39
89=2.74
93=3.19
That would tell Me it's a 50/50 mix not 2:1
LOL!
If it truly was a 50:50 mix, then midgrade would be 90 octane.
Some people's math skills are really bad. It's so wrong on so many levels. I'm not even sure where 50/50 comes from as the difference between regular and super in that example is 80 cents. To bring it up to 89, that calls for 1/3 super which is about 26.6 cents extra. They're charging 35 cents extra so making almost a 9 cent extra profit. If he thought they weren't making a profit and it was 50/50, then the difference should have been 40 cents not 35. But then a 50/50 mix brings the octane up to 90 instead of 89.
Originally Posted by Kjmack
Well at my BP station 87=2.39
89=2.74
93=3.19
That would tell Me it's a 50/50 mix not 2:1
LOL!
If it truly was a 50:50 mix, then midgrade would be 90 octane.
Some people's math skills are really bad. It's so wrong on so many levels. I'm not even sure where 50/50 comes from as the difference between regular and super in that example is 80 cents. To bring it up to 89, that calls for 1/3 super which is about 26.6 cents extra. They're charging 35 cents extra so making almost a 9 cent extra profit. If he thought they weren't making a profit and it was 50/50, then the difference should have been 40 cents not 35. But then a 50/50 mix brings the octane up to 90 instead of 89.
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
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Originally Posted by Rmay635703
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
I did know about ethanol blender pumps and still regularly go to one of the stations that used to have one. Interestingly enough the first two ethanol blender pumps that existed are gone and the stations are just regular bp stations.
I have never seen one that blends regular gas grades.
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
I did know about ethanol blender pumps and still regularly go to one of the stations that used to have one. Interestingly enough the first two ethanol blender pumps that existed are gone and the stations are just regular bp stations.
I have never seen one that blends regular gas grades.
Originally Posted by Rmay635703
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
91 has NO ETHANOL. look!
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
91 has NO ETHANOL. look!
Originally Posted by Vern_in_IL
Originally Posted by Rmay635703
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
91 has NO ETHANOL. look!
And down the street at the pantry station 87 e0 is $2.59, I guess what's the diff?
Originally Posted by Rmay635703
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
91 has NO ETHANOL. look!
And down the street at the pantry station 87 e0 is $2.59, I guess what's the diff?
If it has 1 hose for 87/89/93 it's a blender.
Non-blenders have one hose per grade.
Also look at the tank farm. If you see a blue cap, it's for the 89 tank.
Non-blenders have one hose per grade.
Also look at the tank farm. If you see a blue cap, it's for the 89 tank.
Originally Posted by Vern_in_IL
Originally Posted by Rmay635703
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
91 has NO ETHANOL. look!
And around here 87 is less likely to contain ethanol.
Originally Posted by Rmay635703
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
91 has NO ETHANOL. look!
And around here 87 is less likely to contain ethanol.
Originally Posted by Vern_in_IL
Originally Posted by Rmay635703
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
91 has NO ETHANOL. look!
Around here, all grades contain ethanol.
Originally Posted by Rmay635703
Originally Posted by jhellwig
It might be different in other places but as far as I know it is mixed at the terminal, not the pump. That is how it is done in the Midwest.
We have some "blenders" still around from circa 2000-2005 those do actually spit out a mix but are mainly to get random flexfuel grades
Around here the gradient between regular and premium is pretty steep.
91 has NO ETHANOL. look!
Around here, all grades contain ethanol.
We have 87/89/93 octane gas, all up to 10% ethanol. 89 octane usually costs $0.30 more than 87 and 93 octane usually costs $0.50 more than 87, at least lately. If I run 1/2 tank of 87 and 93 I save money and get a higher octane than using 89 octane from the pump. Thank goodness I don't have any vehicles that NEED higher than 87 octane. The only one that would benefit is the 2.3 EB Explorer that gets more power using 93 octane. But in everyday driving you don't notice the loss of power when using 87 vs 93. And the potential of fuel dilution from using 87 instead of 93 doesn't show up in the UOA's I've had done.
Whimsey
Whimsey
Most of the pumps I ever used to fill my Durango I used to have with 89 (5.7 hemi) you could hear it shuffling between 87 and 93.
I filled my Caliber with e15 2-3 weeks ago, don't recall hearing that same noise but I need to fill up again s I'll listen for it.
I filled my Caliber with e15 2-3 weeks ago, don't recall hearing that same noise but I need to fill up again s I'll listen for it.
In addition to displaying the amount of fuel pumped for the current transaction, many older pumps (not sure if newer ones still have it) also had a very small analog/mechanical "total gallons dispensed" counter tucked away somewhere, but still visible - kind of like an odometer on a car. You would see that a 3-grade pump (87, 89, 93) only had two of these total counters, and as you were dispensing the 89 grade, you could see both counters advancing, with the 87 counter advancing faster than the 93 counter, correlating to the 2:1 mixing ratio mentioned earlier.
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