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*Dead* Free upgrade to premium gas - Shell Horner and Browns Line

  • Last Updated:
  • Mar 15th, 2018 8:49 am
Member
Mar 8, 2010
203 posts
135 upvotes

*Dead* Free upgrade to premium gas - Shell Horner and Browns Line

Shell in Etobicoke @ Horner and Browns Line is offering a free upgrade to premium gas
Last edited by ospina86 on Mar 14th, 2018 3:52 pm, edited 2 times in total.
11 replies
Sr. Member
User avatar
Aug 31, 2009
819 posts
582 upvotes
Toronto
thanks! this is so close to where i am
Deal Addict
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Nov 1, 2005
1360 posts
762 upvotes
Is there any benefit to putting premium gas in a regular gas car?
Sr. Member
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Nov 21, 2010
980 posts
593 upvotes
Canada
Don't bother. They taped off all the pumps. Now truck has arrived. Deal dead
Banned
Dec 14, 2017
719 posts
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Using premium gas for an engine that does not require premium gas could cause your engine to knock which isn't good.
Sr. Member
Jan 31, 2018
574 posts
597 upvotes
Using premium gas in an engine that doesn't require it is NOT going to damage it or make it knock. Exactly the opposite is true.

Higher octane gas is more stable and has a greater ability to resist knocking. It is a higher quality fuel. However it is generally a waste of money to use premium in a car that is designed to run on regular as it is unnecessary, costs more and may reduce your fuel economy because a lower compression engine might not be able to extract as much energy from the higher octane fuel.

Premium gas is a more refined fuel with a higher percentage of high octane components like xylene, toluene and so forth. Regular gas is a very competitive commodity and refiners cut corners by producing a relatively low grade product that is sub-87 octane. Then "boost" the octane by adding up to 10% ethanol - the legal maximum in Canada. Ethanol is lower cost and burns pretty clean - but it is hard on your car. Ethanol has issues that can harm engines, particularly if the percentage was higher, it's corrosive, harmful to rubber, attracts water and acts as a solvent. Which is why you don't see it being added to premium fuel.

In the US you can sometimes buy E15 (15% ethanol, 88 octane). And more recently E85 in some places (85% ethanol, 108 octane) - but this can only be run in engines specially designed to use it. E85 could do a lot of damage in a conventional car designed to run on regular gas.
Deal Guru
Sep 10, 2008
10276 posts
9274 upvotes
Kitchener
ElroyJetson wrote: Which is why you don't see it being added to premium fuel.
This is ONLY true at Shell. Everyone else adds ethanol to everything.
Sr. Member
Jan 31, 2018
574 posts
597 upvotes
Yeah details are always messy. Okay, it was really rare to add ethanol to premium gas in the past and it's still largely true. But yes, it's becoming a lot more common to add it to premium fuel because it is cheaper to make. And in particular since the US Congress mandated an increasing proportion to renewable fuel use. Regular fuel commonly has 10% ethanol. Where it is added to a premium grade it's typically 2 - 5%.

Fuel that has no ethanol is referred to as E0. There are a lot of websites that try to track E0 stations e.g. Pure-gas.org. At a minimum stations that should have E0 premium include Shell, Canadian Tire & MacEwen, country wide. Texaco /Chevron & Co-op in the west. Costco & Ultramar in Ontario. Esso in Toronto, And supposedly all premium gas in Newfoundland, Nova Scotia and PEI. The latter claim is commonly made but I haven't seen any authoritative evidence for it, so not sure if it is true. This is not an inclusive list. For instance I've yet to see Costco in Western Canada that isn't E0 but apparently there are a few exceptions depending on who the stores source their fuel from.

You're in Ontario, so here is a (woefully incomplete) list of stations with E0 in Ontario.
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User avatar
Oct 30, 2008
2804 posts
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GTA
ElroyJetson wrote: Using premium gas in an engine that doesn't require it is NOT going to damage it or make it knock. Exactly the opposite is true.

Higher octane gas is more stable and has a greater ability to resist knocking. It is a higher quality fuel. However it is generally a waste of money to use premium in a car that is designed to run on regular as it is unnecessary, costs more and may reduce your fuel economy because a lower compression engine might not be able to extract as much energy from the higher octane fuel.

Premium gas is a more refined fuel with a higher percentage of high octane components like xylene, toluene and so forth. Regular gas is a very competitive commodity and refiners cut corners by producing a relatively low grade product that is sub-87 octane. Then "boost" the octane by adding up to 10% ethanol - the legal maximum in Canada. Ethanol is lower cost and burns pretty clean - but it is hard on your car. Ethanol has issues that can harm engines, particularly if the percentage was higher, it's corrosive, harmful to rubber, attracts water and acts as a solvent. Which is why you don't see it being added to premium fuel.

In the US you can sometimes buy E15 (15% ethanol, 88 octane). And more recently E85 in some places (85% ethanol, 108 octane) - but this can only be run in engines specially designed to use it. E85 could do a lot of damage in a conventional car designed to run on regular gas.
This is what can happen when RFD users use facts versus opinions they mostly pull out of their ass.

Thanks! Learnt a lot about gas today.
Please don’t confuse my kindness for weakness.

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