This seems plausible: [Costco] 2018 Spring Tire Promotion @ Costco - RedFlagDeals.com Forums In summary, $70 discounts for spring 2018: *Pirelli* March 12 - April 8 $80 Costco Card with the purchase of 4 Pirelli tires. *Bridgestone* March 19 - April 15 $70 Costco Card with the purchase of 4 Bridgestone tires *Michelin* April 9 - June 3 $70 Costco Card with the purchase of 4 Michelin tires One disappointment, seems like they're moving away from cash discounts, which are at-the-till, and reduce your sales tax.
