Member-only prices on Top Tier gas at Costco gas stations

Costco members can fill up at Costco gas stations, which sell Kirkland Signature gasoline at member-only prices. The gas meets TOP TIER standards and has five times the CGSB-required amount of deposit control additive.

Conditions: Only at warehouses with a gas station. Stations are self-serve and open to Costco members, and to anyone paying with a Costco Shop Card. Pay with Mastercard, Canadian debit or a Costco Shop Card; cash and cheques aren't accepted. Gas purchases don't count toward the Executive 2% Reward. Prices vary by location.