Costco in Fontana (16505 Sierra Lakes Pkwy)

Always my go to station to fill up my 370z at! Takes a lil while but the cheapest for top tier 91 Premium

Costco gas is always great prices, for the record someone constantly puts the wrong price, showing 5.55, when its 5.39. and 5.99 when its 5.59

Costco Fontana $3.639 for regular. Costco Ontario $3.519 for regular. Costco San Dimas $3.499. I was told that if they don't have competition like Sam's Club tge prices and higher!!!!!

best of the best

Love Costco cheapest there is!

Pointless to fill up here. Many stations around the area that are same price or only 5 cents more

Great gas for the best price.

Best place for gas if you’re a member. Cheapest and quick get in and get out.

Clean

Another great Costco station.