More MPG with Shell???

bulldog · 01-09-2007, 12:09 AM

On my last tank I noticed about 3 more MPG with Shell regular. I normally run Chevron regular and noticed a dip with winter of about 3-4MPG, pendign on how many short trips I do.

I filled up today with Shell again today and will see when the tank runs out. It seems I get more MPG with Shell than Chevron.

I live in the SF Bay Area. Anybody else notice it around here as well? We obviously don't deal with extreme cold. Maybe Chevron uses winter mix and Shell don't inthese parts??

berylrb · 01-09-2007, 12:41 AM

<div class='quotetop'>QUOTE(bulldog @ Jan 9 2007, 12:09 AM) [snapback]372906[/snapback]</div>

Quote:

On my last tank I noticed about 3 more MPG with Shell regular. I normally run Chevron regular and noticed a dip with winter of about 3-4MPG, pendign on how many short trips I do.

I filled up today with Shell again today and will see when the tank runs out. It seems I get more MPG with Shell than Chevron.

I live in the SF Bay Area. Anybody else notice it around here as well? We obviously don't deal with extreme cold. Maybe Chevron uses winter mix and Shell don't inthese parts??
[/b]

Funny you should mention that! I found the same thing but I always use the same two stations a Chevron in Daly City (only used when I wash the car), and an independent station that used to be a Shell station near my house, this is really our preferred gas station, they still buy from Shell, or at least they used to. One station doesn't make a pattern but I was always curious why our local station does better. I just assumed it had more to do with the actual pumps being different pumping 'speeds' or something like that.

BTW I notice the difference year round for these two stations.

JimN · 01-09-2007, 08:41 PM

<div class='quotetop'>QUOTE(bulldog @ Jan 9 2007, 12:09 AM) [snapback]372906[/snapback]</div>

Quote:

On my last tank I noticed about 3 more MPG with Shell regular. I normally run Chevron regular and noticed a dip with winter of about 3-4MPG, pendign on how many short trips I do.

I filled up today with Shell again today and will see when the tank runs out. It seems I get more MPG with Shell than Chevron.

I live in the SF Bay Area. Anybody else notice it around here as well? We obviously don't deal with extreme cold. Maybe Chevron uses winter mix and Shell don't inthese parts??
[/b]

I switched to Shell when I got their Master Card for the rebate. Previously I'd buy the cheapest gas I could find. With all of the varying factors I can't pin fluctuating mpg on any one brand.

mike_m · 01-09-2007, 08:47 PM

I have tried most, and Shell gives me the best mileage also.

Chixsngr · 01-10-2007, 01:12 AM

That's great because I will never buy gas from Exxon Mobil again.

barbaram · 01-16-2007, 02:43 PM

Very interesting!!!!

I just drove about 750 miles in a week for work. 5 trips to atlantic city & back. similar conditions on all trips but 1 was very windy.

filled up once with shell and got the higest mileage. not a huge diiference, but it was higher.

silentak1 · 01-16-2007, 03:18 PM

I only pump Chevron or Shell 87.

Shell typically renders me slightly higher mpg, but no Techron? It should have enough detergents since it's from Shell...(right?).

bulldog · 01-16-2007, 08:34 PM

On my 3rd tank of Shell now and it definitely gives me 1-2 MPG more than Chevron. I will switch back to Chevron in a while to see what happens. Problem is we have had some really cold weather around these parts for the last week or so. Once the weather settles and I can get a consistent MPG reading with Shell I will switch to CHevron again to see what happens.

MarinJohn · 01-16-2007, 09:05 PM

Independent of this thread I have also started a Shell trial, and while it's too soon to tell definitively, it's looking good for Shell. I'm guessing 2-3 mpg.

dougaber · 01-19-2007, 11:25 AM

I'll switch to Shell too and see what happens. Any suggestions as to which octane to buy? I use to buy only Chevron for my trade-in (Nissan Murano) and I found that buying the 91 octane was cheaper per mile than the 87 octane. The owners manual for the Murano suggested the 91 also.

Fortunately/unfortunately filling up the tank happens so infrequently with the Prius

this study may take a while!

LinkBacks (?) LinkBack to this Thread: http://priuschat.com/forums/fuel-economy/27350-more-mpg-shell.html
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01-09-2007, 12:09 AM	#1
bulldog Senior Member Join Date: Jun 2006 Location: CA Posts: 214 My Car: 2006 Prius Package: #6 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	On my last tank I noticed about 3 more MPG with Shell regular. I normally run Chevron regular and noticed a dip with winter of about 3-4MPG, pendign on how many short trips I do. I filled up today with Shell again today and will see when the tank runs out. It seems I get more MPG with Shell than Chevron. I live in the SF Bay Area. Anybody else notice it around here as well? We obviously don't deal with extreme cold. Maybe Chevron uses winter mix and Shell don't inthese parts??

01-09-2007, 08:47 PM	#4
mike_m Senior Member Join Date: Apr 2006 Posts: 232 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	I have tried most, and Shell gives me the best mileage also.

01-10-2007, 01:12 AM	#5
Chixsngr Join Date: Jan 2007 Location: Huntington Beach, Ca Posts: 8 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	That's great because I will never buy gas from Exxon Mobil again.

01-16-2007, 02:43 PM	#6
barbaram Senior Member Join Date: Jan 2006 Location: Trenton, NJ Posts: 721 My Car: 2006 Prius Package: #6 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Very interesting!!!! I just drove about 750 miles in a week for work. 5 trips to atlantic city & back. similar conditions on all trips but 1 was very windy. filled up once with shell and got the higest mileage. not a huge diiference, but it was higher.

01-16-2007, 03:18 PM	#7
silentak1 Senior Member Join Date: Jul 2005 Location: Los Angeles, CA Posts: 547 My Car: Other Non-Hybrid Package: N/A Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	I only pump Chevron or Shell 87. Shell typically renders me slightly higher mpg, but no Techron? It should have enough detergents since it's from Shell...(right?).

01-16-2007, 08:34 PM	#8
bulldog Senior Member Join Date: Jun 2006 Location: CA Posts: 214 My Car: 2006 Prius Package: #6 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	On my 3rd tank of Shell now and it definitely gives me 1-2 MPG more than Chevron. I will switch back to Chevron in a while to see what happens. Problem is we have had some really cold weather around these parts for the last week or so. Once the weather settles and I can get a consistent MPG reading with Shell I will switch to CHevron again to see what happens.

01-16-2007, 09:05 PM	#9
MarinJohn Senior Member Join Date: Feb 2004 Posts: 2,412 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 2	Independent of this thread I have also started a Shell trial, and while it's too soon to tell definitively, it's looking good for Shell. I'm guessing 2-3 mpg.

01-19-2007, 11:25 AM	#10
dougaber Join Date: Jan 2007 Posts: 11 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	I'll switch to Shell too and see what happens. Any suggestions as to which octane to buy? I use to buy only Chevron for my trade-in (Nissan Murano) and I found that buying the 91 octane was cheaper per mile than the 87 octane. The owners manual for the Murano suggested the 91 also. Fortunately/unfortunately filling up the tank happens so infrequently with the Prius this study may take a while!