Generic brand vs Name brand of Gasoline - Mercedes Benz SLK Forum

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#1 Old 03-17-2012
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Generic brand vs Name brand of Gasoline

As everybody experiencing the price of premium gas is going up every day. My concern is, is it all right to buy those gas from independent gas station like in 7/11 and Food Mart on less prices compare to Shell and Chevron?
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#2 Old 03-17-2012
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Most gas comes out just a few cracking plants; bigger worry is how good the tanks are at the station you buy from (ie newer is better) due to the chance of contamination (water etc).


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#3 Old 03-17-2012
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Shell and Chevron claims that their premium grade have better detergent to keep the engine clean, that is why I kind hesitate if the gas station next door is ok.
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#4 Old 03-17-2012
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Search my techron thread for my list of top tier gas


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#5 Old 03-17-2012
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Try this link; Top Tier Gasoline

Is TT gas worth it? Well, I've been told that COSTCO has Shell, but I don't know if this info is on the pumps or my friend happened to see a Shell truck "dumping" a load of gas. I've also read that "mini-mart tanker trucks" get their gas from the same storage facilities as Shell, Exxon etc. I don't have first hand knowledge of this. All I know is I use Shell.

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#6 Old 03-17-2012
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Take some comfort in this.......

Here in the UK I passed a filling station, selling regular petrol (gas) at 1.40 per liter, and diesel at 1.44 per liter.

4.54 litres to a UK gallon = 6.35 per gallon.

1 = $1.58

So thats $10.03 a gallon!
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Many complain about the price of gas here, but I try to just wince a bit(I paid $4.19 gal 93 octane last week) since I know I can do little about it.

"Think as I think," said a man,"Or you are abominably wicked; You are a toad."
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That would be heaven in the UK, not so bad in the car boat the boat uses about 1 UK Gallon a mile.

If it is the same as it is here the fuel is bunkered at a local fuel farm and distributed from there. any surplus is hoovered up by the supermarkets at knock down prices, so they will be selling top grade fuel from one of the major companies. additives are added at tanker though so detergents and octane boosters will not be present unless you pick it up at Mr Shell or Chevron.
If is cheaper you could always add your own additive to the tank after buying from 7-11 and achieve the same thing.
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Interesting to see you get 93 octane over there our regular is 95 and super is 98, one of our supermarkets, Tesco, does a 99 Octane rating.
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#10 Old 03-17-2012
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Interesting to see you get 93 octane over there our regular is 95 and super is 98, one of our supermarkets, Tesco, does a 99 Octane rating.

The USA has a different rating system, our 93 is like your 98. Europe uses RON rating and the USA uses AKI rating. AKI system is actually derived from the average of the RON system and another more complicated system referred to as MON or Motor Octane Number.
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#11 Old 03-17-2012
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But Tatts...you can drive the length of your country on a tank or two!


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4 Gas-Saving Myths to Ignore

as long as we are talking about gas:

4 Gas-Saving Myths to Ignore


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#13 Old 03-17-2012
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Read the consumer label/notice for Costco gasoline, it has 10% alcohol, at least the one in Irvine, CA.

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#14 Old 03-17-2012
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My father was in the gas hauling business for many years in the USA. When it came to delivering to non-branded gas stations like a 7-11, his trucks would picked up their loads from whichever distributor the 7-11 buyer worked the best deal with that day. So one day the same store may have Shell, then Exxon, etc. At other times, they may buy from a Shell distributor for several months in a row. In that case, their gas would be nearly identical to a branded Shell station. There are really no "generic" distributors. Also, the different companies share many of the same pipelines, so there is obviously cross blending of different brand petros.

With that being said, I do agree that many of the 7-11 type stores do not look after their storage tanks as well as a branded station or take the time to change their filters, etc. They also do not typically sell as much gas and therefore, the gas has time to attract moisture which is the enemy to all car engines. Slow moving product is also another good reason to avoid buying your gas the mom and pop country stores that sell a few hundred gallons of gas a day.

Personally, I like to buy my gas from a higher volume Shell station.

Paid $3.95/gallon today in NC! HOWEVER, the weather was 80 and sunny....the quick road trip was worth every penny!!

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#15 Old 03-18-2012
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Personally, I like to buy my gas from a higher volume Shell station.

Paid $3.95/gallon today in NC! HOWEVER, the weather was 80 and sunny....the quick road trip was worth every penny!!
I have 3 in a 5 mile radius, so it's easy to get the "good stuff"

I saw a Shell sign with reg. at $3.79, which should mean premium was $3.99(around here, there are typically $.10 steps). Yes, the
DO ease the "pain" a bit

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#16 Old 03-18-2012
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Why is it diesel fuel cost more than gasoline? Is'nt it diesel is less refined than gasoline? Does diesel fuel give more miles per gallon. Never owned diesel car because not many station selling diesel except if you close by aroundf truck stop.
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#17 Old 03-19-2012
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Why is it diesel fuel cost more than gasoline? Is'nt it diesel is less refined than gasoline? Does diesel fuel give more miles per gallon. Never owned diesel car because not many station selling diesel except if you close by aroundf truck stop.

Some years ago diesel fuel was changed to a ultra low sulfer which requied more processing. I also have a 2011 VW Jetta 2.0 turbo diesel. I get over 42 MPG on the highway and around 31 MPG around town. The over all average is 34 MPG. Compared to the car it replaced that got 18 MPG average using gasoline I am saving a lot of money. The turbo diesel runs better than the 2009 Honda Pilot it repalced that weas 6 with the engine management that some times ran on 3 that was suppose to save gas. The Honda was a 2 wheel drive.
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#18 Old 03-19-2012
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Why is it diesel fuel cost more than gasoline? Is'nt it diesel is less refined than gasoline? Does diesel fuel give more miles per gallon. Never owned diesel car because not many station selling diesel except if you close by aroundf truck stop.
Less refined is not really a good description - it's just refined differently. Diesel has a higher volumetric energy density than gasoline by about 11%, which in general results in a higher "miles per gallon".

Here in the UK, it's hard to find a petrol station that does not sell diesel.



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#19 Old 03-19-2012
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The biggest reason diesel is more expensive than gasoline comes down to supply and demand. There is more demand for diesel than there ever has been. That will slowly start to change as more trucks are beginning to run on natural gas which is in oversupply due to the latest hydraulic fracturing technologies. The same thing happened back in the 70's when most large trucks actually ran on gasoline and diesel was the new cheaper fuel.

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#20 Old 03-19-2012
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Hmm.......
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