Depending on where you live in Canada the spread from regular to premium gasoline in the wholesale price for gas stations ranges between 6 and 11 cents a litre. However many stations charge a difference of 32 cents a litre between the two blends. The wider difference commonly seen in pump’s prices between regular and premium, is the markup gas stations charge minus GST/HST and the wholesale price difference. For a more complete explanation see:
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In general, gas prices tend to be lower at the beginning of the week. However, this can vary and is influenced by several factors such as regional taxes, the level of competition, the amount that outlet sells, and the type and location of stations. It’s always a good idea to keep an eye on Gas Wizard for the most accurate and up-to-date information