Different MPG with different brand of gas?

MGM · 05-19-2007, 08:38 PM

My 07 Touring has 2500 miles on it. I'm noticing that when I fill it up with Chevron gas, I get 40-42 MPG per tankful and with Shell gas I get 44-47 MPG. I'm driving the same way in the same environment. Does anyone else notice a difference in MPG between different brands of gas?

BTW I am not am employee or shareholder of any oil company. Just a curious Prius owner.

Thanks

DFWPrius · 05-19-2007, 11:26 PM

Many Prius owner's have made postings that, Shell seem to increase MPG by 1 or 2.

MGM · 05-19-2007, 11:42 PM

<div class='quotetop'>QUOTE(DFWPrius @ May 19 2007, 08:26 PM) [snapback]445952[/snapback]</div>

Quote:

Many Prius owner's have made postings that, Shell seem to increase MPG by 1 or 2.
[/b]

That would corroborate what I'm seeing with my car.

My girlfriend just told me that she seems to notice an improvement with Shell as well.

Thanks for the input.

jimmylozza · 05-19-2007, 11:52 PM

Shell is good, but the QuickTrips here seem to be the best.

My theory is whichever gas has the least Ethanol works best. Reason I say that is there is a Kroger here (MacArthur just south of 635 for you DFW folks) that has an E85 pump. They have corn logos all over everything, and instead of just the usual "May contain up to 10% Ethanol", they have special signs that say, "Enriched with 10% Ethanol". Every time I fill up there, my regular QuickTrip/Shell mileage goes from 50-52 down to 44-46. The motor has decidedly less power, and you can see the mileage bar on the Consumption screen struggle to stay at 100mpg even when you let off the gas. First time I filled up at that Kroger I had tried 89 Octane just for fun, so I wrote off the poor performance. Then I next filled up at a QuickTrip - back up to 50mpg. Next tank was the same Kroger, but I used 87 Octane, and again my mileage and performance immediately went in the toilet as I drove off - ended up with a 46mpg tank.

MGM · 05-20-2007, 12:32 AM

Do they have Quicktrip in Atlanta? I'll be moving there in July...

ystasino · 05-20-2007, 12:08 PM

<div class='quotetop'>QUOTE(DFWPrius @ May 19 2007, 11:26 PM) [snapback]445952[/snapback]</div>

Quote:

Many Prius owner's have made postings that, Shell seem to increase MPG by 1 or 2.
[/b]

This happened with my Prius too and it was more like 3 mpg

priusmaybe · 05-20-2007, 12:46 PM

Quicktrips are all over Atlanta. It is usually the best price gas.

MGM · 05-20-2007, 12:51 PM

<div class='quotetop'>QUOTE(priusmaybe @ May 20 2007, 09:46 AM) [snapback]446151[/snapback]</div>

Quote:

Quicktrips are all over Atlanta. It is usually the best price gas.
[/b]

Cool. Thanks. I'll be on the lookout for them.

priussoris · 05-20-2007, 02:38 PM

I used to buy from Murphy Oil ( Walmart) but have switched to shell 87 octane and get 52-53 mpg vs 48-50 mpg with the wallyworld stuff so it's shell for me

JimN · 05-20-2007, 07:18 PM

There is a 5% rebate when the Shell MasterCard is used at a Shell station. So unless Shell is 5% more expensive to begin with, it is the cheapest gas in the end. (The rebate is credited directly to the Shell purchases the next month. Nothing to redeem, no minimum redemption amount.)

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05-19-2007, 08:38 PM	#1
MGM Join Date: Feb 2007 Posts: 45 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	My 07 Touring has 2500 miles on it. I'm noticing that when I fill it up with Chevron gas, I get 40-42 MPG per tankful and with Shell gas I get 44-47 MPG. I'm driving the same way in the same environment. Does anyone else notice a difference in MPG between different brands of gas? BTW I am not am employee or shareholder of any oil company. Just a curious Prius owner. Thanks

05-19-2007, 11:26 PM	#2
DFWPrius Member Join Date: Jan 2007 Posts: 40 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Many Prius owner's have made postings that, Shell seem to increase MPG by 1 or 2.

05-19-2007, 11:52 PM	#4
jimmylozza Join Date: Jan 2007 Posts: 140 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Shell is good, but the QuickTrips here seem to be the best. My theory is whichever gas has the least Ethanol works best. Reason I say that is there is a Kroger here (MacArthur just south of 635 for you DFW folks) that has an E85 pump. They have corn logos all over everything, and instead of just the usual "May contain up to 10% Ethanol", they have special signs that say, "Enriched with 10% Ethanol". Every time I fill up there, my regular QuickTrip/Shell mileage goes from 50-52 down to 44-46. The motor has decidedly less power, and you can see the mileage bar on the Consumption screen struggle to stay at 100mpg even when you let off the gas. First time I filled up at that Kroger I had tried 89 Octane just for fun, so I wrote off the poor performance. Then I next filled up at a QuickTrip - back up to 50mpg. Next tank was the same Kroger, but I used 87 Octane, and again my mileage and performance immediately went in the toilet as I drove off - ended up with a 46mpg tank.

05-20-2007, 12:32 AM	#5
MGM Join Date: Feb 2007 Posts: 45 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Do they have Quicktrip in Atlanta? I'll be moving there in July...

05-20-2007, 12:46 PM	#7
priusmaybe Senior Member Join Date: Apr 2007 Location: Atlanta Posts: 305 My Car: 2007 Prius Package: #3 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Quicktrips are all over Atlanta. It is usually the best price gas.

05-20-2007, 02:38 PM	#9
priussoris Join Date: Apr 2007 Posts: 1,005 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	I used to buy from Murphy Oil ( Walmart) but have switched to shell 87 octane and get 52-53 mpg vs 48-50 mpg with the wallyworld stuff so it's shell for me

05-20-2007, 07:18 PM	#10
JimN Certified Prius Advisor Join Date: Nov 2006 Location: South Jersey Posts: 2,237 My Car: 2006 Prius Package: #3 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	There is a 5% rebate when the Shell MasterCard is used at a Shell station. So unless Shell is 5% more expensive to begin with, it is the cheapest gas in the end. (The rebate is credited directly to the Shell purchases the next month. Nothing to redeem, no minimum redemption amount.)