Diesel in Toronto moves to a different beat than regular gasoline. While regular follows the familiar weekly retail cycle, diesel tracks the wholesale rack price for middle distillates much more closely — and because the GTA burns an enormous amount of diesel in trucks running the 401, 427 and 400 corridors, local demand swings show up at the pump fast. The spread between the cheapest and most expensive diesel pump on the same day in Toronto is routinely 15–25 cents per litre, wider than the spread on regular.
That spread is worth real money for anyone driving a diesel pickup, van or European sedan: on a 70-litre tank, a 15¢/L difference is over $10 per fill. The consistently cheaper diesel tends to sit where the trucks are — stations along the industrial stretches of Scarborough, Rexdale and Etobicoke near the 401 and 427 — while pumps buried downtown near the Gardiner and DVP on-ramps post the highest prices in the city. Not every station carries diesel at all; dense urban corners often skip the tank entirely.
Prices below are community-reported and refreshed hourly. Diesel in particular can change mid-day when a station takes a fresh load, so always confirm the posted price at the pump.