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Usually the results are accurate to +/- 1.5 octane numbers. As a much cheaper but not 100% foolproof way to do so, you can run your car until it's practically out of gas. Then fill it up with a reference fuel like a 93 (93% iso-octane, 7% n-heptane) and estimate the knock while that burns.
- Shell. Locations in Canada: 1,300+ Rewards program: Yes – Shell GO+ Notable for: Top-tier fuel additives. With over 1,300 gas stations spread throughout the country, Shell is one of the leading fuel providers in Canada and is known for its high-quality gasoline and extensive service network.
- Costco. Rewards program: No, but discounts from Costco membership. Notable for: Affordable, top-tier gas. If you’re already a Costco member, then you’re already aware of how much you can save by buying in bulk and taking advantage of Costco’s “secret” pricing codes.
- Petro-Canada. Locations in Canada: 1,500+ Rewards program: Yes – Petro-Points. Notable for: Tactrol fuel additive (included in all fuel grades) Petro-Canada has remained one of the top gas stations in Canada since its launch in the 1970s.
- Esso. Locations in Canada: 2,000+ Rewards program: Yes – Speedpass+ Notable for: Having lots of locations. Owned by industry giant ExxonMobil, Esso is a well-recognized name in Canada that’s known for its high-quality gasoline.
Dec 1, 2005 · As long as the gasoline meets the required octane rating (called being on-test) it really doesn't matter who makes it. Each company's (Shell, etc) additive package is added at the terminal where the tanker trucks are loaded. Most gas stations have three underground tanks for gasoline, one for each grade.
Apr 29, 2024 · Gasoline with a higher octane rating is more resistant to knocking, providing a smoother and more controlled burn in the engine. Gasoline in Canada typically comes in four main octane ratings: 87 (Regular), 89 (Mid-Grade), 91 (Premium) and 94 (Super Premium).
Octane costs and values are often described in terms of dollars per octane-barrel ($/AKI-b).21 To measure the cost of producing incremental octane, we calculate the cost of producing an incremental barrel of premium gasoline (CTP) by raising reformer severity (Figure 29, red and black lines).
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Feb 3, 2022 · 91 octane or higher (aka premium) Top Tier fuel is recommended. You left out Top Tier. Additives (gum removers, fuel system and injector cleaners) are not recommended. In theory, 93 will resist knocking (ping) more than 91. So the factory tuning will take advantage of the octane to the limits of knock. But ethanol has less "power" than gas by ...
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Jun 13, 2017 · Most fuel stations sell at least three grades of gasoline, arranged by their octane rating, which is identified by an increasing number on the pump. Typically, a fuel station offers 87 octane gasoline as its regular grade, 91 octane as its mid-grade, and 91 octane as its top-grade fuel.
