$10 offconventional oil changeUp to 5 quarts of Valvoline conventional oil, quarts above 5 arebilled at regular rate, certain special application filters, synthetic oil and synthetic blend oil are extra, sales tax, 5% shop supply fee and $1.50 used filter disposal fee not included.. With this coupon. Not valid with any other offers, coupons or discounts. Offer expires 5/15/21.