Best gasoline for a 992 GTS ?
07-17-2023, 10:19 PM
#31
BC based video but includes some US pumps as well. Further into the video series we get Shell 93 added to the mix which seems to be our new gold standard from the pump.
$2.27 / l in Canadian pesos so not cheap.
07-17-2023, 10:27 PM
#32
Three Wheelin'
In the US, for cars with a stock tune, using anything more than 93 octane as calculated by the (R+M)/2 method and posted on US cars and pumps is a waste of dollars, the engine management system simply won’t use it.
For tuned cars you are ‘off the ranch’ and will need to review with your tuner since there are many options.
In Europe and other continents octane is measured using different calculations but the same rules apply: using more than the highest recommend octane is of zero performance benefit.
For tuned cars you are ‘off the ranch’ and will need to review with your tuner since there are many options.
In Europe and other continents octane is measured using different calculations but the same rules apply: using more than the highest recommend octane is of zero performance benefit.
Last edited by CanAutM3; 07-18-2023 at 08:57 AM.
07-17-2023, 11:14 PM
#33
Three Wheelin'
https://www.youtube.com/watch?v=f92fAjVcTto
BC based video but includes some US pumps as well. Further into the video series we get Shell 93 added to the mix which seems to be our new gold standard from the pump.
$2.27 / l in Canadian pesos so not cheap.
BC based video but includes some US pumps as well. Further into the video series we get Shell 93 added to the mix which seems to be our new gold standard from the pump.
$2.27 / l in Canadian pesos so not cheap.
.
07-17-2023, 11:48 PM
#34
Race Car
Even though I primarily fill up at a high volume Shell station, you have to be careful at some of these independents where they just pay to use the Exxon or Sunoco branding. You can usually tell just by looking at a station how it’s kept up, and what kind of fuel you might be getting.
In regards to fueling up at Costco, you have to deal with the mystery fuel in that ten feet of hose that gets pumped into your car,
Is anyone **** enough to purge the line by offering a neighbor the first gallon? Or maybe pump it into a container to put into your daily?
In regards to fueling up at Costco, you have to deal with the mystery fuel in that ten feet of hose that gets pumped into your car,
Is anyone **** enough to purge the line by offering a neighbor the first gallon? Or maybe pump it into a container to put into your daily?
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aspan (07-18-2023)
07-18-2023, 12:49 AM
#35
RL Community Team
Rennlist Member
Rennlist Member
Even though I primarily fill up at a high volume Shell station, you have to be careful at some of these independents where they just pay to use the Exxon or Sunoco branding. You can usually tell just by looking at a station how it’s kept up, and what kind of fuel you might be getting.
In regards to fueling up at Costco, you have to deal with the mystery fuel in that ten feet of hose that gets pumped into your car,
Is anyone **** enough to purge the line by offering a neighbor the first gallon? Or maybe pump it into a container to put into your daily?
In regards to fueling up at Costco, you have to deal with the mystery fuel in that ten feet of hose that gets pumped into your car,
Is anyone **** enough to purge the line by offering a neighbor the first gallon? Or maybe pump it into a container to put into your daily?
Really?
07-18-2023, 08:11 AM
#36
Three Wheelin'
There are only 3 grades of gasoline manufactured. Regular, Midgrade and Premium. It is a commodity that can be traded, swapped, etc. from any refinery to any wholesaler. The premium grade spec is 91-94 octane, so technically it can be anywhere within that range and meet specifications. Octane additives cost money so most refiners will try to make the minimum spec to qualify the run as "premium". Branded gasoline (coming from company owned refineries) can be better but also may not come from their refinery. It really is a crapshoot for the most part and you can only "count" on getting 91 octane though chances are probably better at branded "top tier" stations of actually getting 93 octane fuel.
07-18-2023, 08:38 AM
#37
Three Wheelin'
There are only 3 grades of gasoline manufactured. Regular, Midgrade and Premium. It is a commodity that can be traded, swapped, etc. from any refinery to any wholesaler. The premium grade spec is 91-94 octane, so technically it can be anywhere within that range and meet specifications. Octane additives cost money so most refiners will try to make the minimum spec to qualify the run as "premium". Branded gasoline (coming from company owned refineries) can be better but also may not come from their refinery. It really is a crapshoot for the most part and you can only "count" on getting 91 octane though chances are probably better at branded "top tier" stations of actually getting 93 octane fuel.
07-18-2023, 10:41 AM
#38
Three Wheelin'
From the EIA.gov site.
Refining oil into gasoline
At petroleum refineries, crude oil is broken into its various components, which are then selectively reconfigured into new products. U.S. refineries generally focus on producing gasoline to meet U.S. market demand, and they produce nearly all of the gasoline sold in the United States.Moving gasoline from refineries to storage terminals
Most gasoline moves from refineries through pipelines to large storage terminals near consuming areas. Gasoline and other petroleum products from different refineries are often sent through shared pipelines in batches. These batches are not physically separated in pipelines and some mixing, or commingling, of products occurs. Because of this mixing, the gasoline and other products must be tested as they leave pipelines to see if they meet required specifications. If a product fails to meet local, state, or federal specifications, it is sent back to a refinery for additional processing.Finishing gasoline at blending terminals
Gasoline is usually sent by tanker truck from the large storage terminals to smaller blending terminals, where it is processed into finished motor gasoline. These smaller terminals are typically where fuel ethanol is blended into gasoline.Importing gasoline
The United States imports both finished motor gasoline and gasoline blending components from various countries, mainly into the East and West Coasts, when it is less expansive or faster to obtain from other countries than from domestic suppliers.Delivering gasoline to fueling stations
Tanker trucks deliver the finished motor gasoline from blending terminals to more than 100,000 retail outlets across the United States. Different companies that own service stations in the same area may purchase their gasoline at the same bulk storage and distribution terminal. Many of the stations are unbranded dealers that sell gasoline produced by different companies, and branded stations may not necessarily sell the gasoline their companies produce. The only difference between the gasoline at one company's fueling stations and another company’s stations is the small amount of additives they might have blended into gasoline before delivery to their fueling stations.Last edited by 991.1 Guy; 07-18-2023 at 10:53 AM.
07-18-2023, 10:59 AM
#39
Rennlist Member
There are only 3 grades of gasoline manufactured. Regular, Midgrade and Premium. It is a commodity that can be traded, swapped, etc. from any refinery to any wholesaler. The premium grade spec is 91-94 octane, so technically it can be anywhere within that range and meet specifications. Octane additives cost money so most refiners will try to make the minimum spec to qualify the run as "premium". Branded gasoline (coming from company owned refineries) can be better but also may not come from their refinery. It really is a crapshoot for the most part and you can only "count" on getting 91 octane though chances are probably better at branded "top tier" stations of actually getting 93 octane fuel.
07-18-2023, 11:03 AM
#40
Rennlist Member
Delivering gasoline to fueling stations
Tanker trucks deliver the finished motor gasoline from blending terminals to more than 100,000 retail outlets across the United States. Different companies that own service stations in the same area may purchase their gasoline at the same bulk storage and distribution terminal. Many of the stations are unbranded dealers that sell gasoline produced by different companies, and branded stations may not necessarily sell the gasoline their companies produce. The only difference between the gasoline at one company's fueling stations and another company’s stations is the small amount of additives they might have blended into gasoline before delivery to their fueling stations.
Tanker trucks deliver the finished motor gasoline from blending terminals to more than 100,000 retail outlets across the United States. Different companies that own service stations in the same area may purchase their gasoline at the same bulk storage and distribution terminal. Many of the stations are unbranded dealers that sell gasoline produced by different companies, and branded stations may not necessarily sell the gasoline their companies produce. The only difference between the gasoline at one company's fueling stations and another company’s stations is the small amount of additives they might have blended into gasoline before delivery to their fueling stations.
07-18-2023, 11:12 AM
#41
Race Car
07-18-2023, 11:17 AM
#42
I love that he not only played Jim Morrison, but that he also played Nick Rivers, a parody on a singer. Interestingly when the Doors toured there were signs in the audience, "We love you Jeem". And in this movie is a take off on that (despite the Doors movie not coming out until 7 years later), "We love you Neek"
07-18-2023, 11:21 AM
#43
Three Wheelin'
Yes I'm sure of the commodity specifications, although you are correct that blending does take place and is common. In fact, off spec gasoline is often blended to meet a spec before being marketed. This is common and there are companies that specialize in blending. Usually you will see the stations have three distinct tanks for each grade. I am not a chemist or a jobber (wholesale reseller) but I do trade the commodity. The additives that make fuel unique, such as detergents, etc., are typically added downstream of the refinery.
From the EIA.gov site.
From the EIA.gov site.
Refining oil into gasoline
At petroleum refineries, crude oil is broken into its various components, which are then selectively reconfigured into new products. U.S. refineries generally focus on producing gasoline to meet U.S. market demand, and they produce nearly all of the gasoline sold in the United States.Moving gasoline from refineries to storage terminals
Most gasoline moves from refineries through pipelines to large storage terminals near consuming areas. Gasoline and other petroleum products from different refineries are often sent through shared pipelines in batches. These batches are not physically separated in pipelines and some mixing, or commingling, of products occurs. Because of this mixing, the gasoline and other products must be tested as they leave pipelines to see if they meet required specifications. If a product fails to meet local, state, or federal specifications, it is sent back to a refinery for additional processing.Finishing gasoline at blending terminals
Gasoline is usually sent by tanker truck from the large storage terminals to smaller blending terminals, where it is processed into finished motor gasoline. These smaller terminals are typically where fuel ethanol is blended into gasoline.Importing gasoline
The United States imports both finished motor gasoline and gasoline blending components from various countries, mainly into the East and West Coasts, when it is less expansive or faster to obtain from other countries than from domestic suppliers.Delivering gasoline to fueling stations
Tanker trucks deliver the finished motor gasoline from blending terminals to more than 100,000 retail outlets across the United States. Different companies that own service stations in the same area may purchase their gasoline at the same bulk storage and distribution terminal. Many of the stations are unbranded dealers that sell gasoline produced by different companies, and branded stations may not necessarily sell the gasoline their companies produce. The only difference between the gasoline at one company's fueling stations and another company’s stations is the small amount of additives they might have blended into gasoline before delivery to their fueling stations.https://www.capitalone.com/cars/lear...-your-car/2063
https://www.cnet.com/roadshow/news/t...-midgrade-gas/
https://blog.consumerguide.com/what-...grade-gas/amp/
07-18-2023, 01:29 PM
#44
Um, no.
That just means your Exxon or Shell has subpar gas.
Top Tier gas is Top Tier gas and, personally, I would trust Costco to be more homogenously accountable in what they are advertising as "Top Tier" than a branded franchisee, like your (not specifically "your" Exxon, but generic "your") local corner Exxon or Shell station.
That just means your Exxon or Shell has subpar gas.
Top Tier gas is Top Tier gas and, personally, I would trust Costco to be more homogenously accountable in what they are advertising as "Top Tier" than a branded franchisee, like your (not specifically "your" Exxon, but generic "your") local corner Exxon or Shell station.
07-18-2023, 01:32 PM
#45
In the US, for cars with a stock tune, using anything more than 93 octane as calculated by the (R+M)/2 method and posted on US cars and pumps is a waste of dollars, the engine management system simply won’t use it.
For tuned cars you are ‘off the ranch’ and will need to review with your tuner since there are many options.
In Europe and other continents octane is measured using different calculations but the same rules apply: using more than the highest recommend octane is of zero performance benefit.
For tuned cars you are ‘off the ranch’ and will need to review with your tuner since there are many options.
In Europe and other continents octane is measured using different calculations but the same rules apply: using more than the highest recommend octane is of zero performance benefit.