$24.99 Firestone Coupon – Oil Change ( April-30 ) Print coupon for a standard oil change plus install new oil filter for $24.99.. More Coupons For Firestone ( April-30 ) – 15% Off Firestone FR710 – Firestone Affinity Touring Buy 3 Get the 4th Free – $7 Off Standard Oil Change & Filter – $10 Off A/C Performance Check [...]