Gas prices in Mississauga: the Toronto West figure

Toronto West stands in for Mississauga

The provincial survey is a Monday snapshot of self-serve prices across a handful of Ontario markets. Mississauga is not one of them by name; it falls inside Toronto West, and so do its neighbours in Peel. The table below therefore describes the western part of the Greater Toronto Area as a whole, with each figure dated and attributed.

At this survey premium sat 31.1¢/L above regular and diesel 85.1¢/L above it. Those spreads come from the refined products markets, not from tax: Ontario charges the same 9 cents a litre on both gasoline grades.

What a compact car costs to fill in Mississauga

The simplest case is a compact car. Take a 45-litre tank bought from empty: at the survey price it costs $79.61, and at the price expected for October 27, 2026 it would cost $78.12. Each cent per litre is worth $0.45 on that fill-up, so a move of a few cents between Monday and the weekend barely changes the bill.

The running cost tells a more useful story. Natural Resources Canada's median combined rating for 2026 compact models is 8.7 litres per 100 km, which puts every 100 km at $15.10 at tomorrow's estimate. Enter your posted price and how full the tank still is below.

Reading tomorrow's Mississauga estimate

The estimate is the Monday Toronto West average plus whatever the wholesale market has done since, measured through the daily Québec survey once its taxes are stripped out and Ontario's HST is put back. It answers one question: if the survey were taken again tomorrow, where would the average probably land? Over the weeks replayed, nine misses out of ten stayed within 5.5¢/L. It cannot say what a single forecourt on Hurontario Street or Dundas Street will post. The tomorrow page shows the same estimate for every city.

Taxes inside a Mississauga litre

Tax per litre is fixed in cents, then HST is charged on the whole price, so the HST part rises and falls with the pump price while the provincial tax does not.

The federal excise tax of 10 cents on gasoline is at zero for now. Finance Canada's draft legislation (proposed, not enacted) brings back half of it on February 1, 2027 and all of it on April 1, 2027, which would add the excise plus HST on top to every litre.

Recent Toronto West surveys

The Ontario series is published under an open licence, so the last 13 surveys used for Mississauga can be listed in full.

Drivers in the east end of the region can set these against the Toronto East figures used for Oshawa, and the national ranking places the whole market among other Canadian cities.