Pennzoil website is operated by pennzoil.com, a mid-size Automotive retailer in the country. Currently we are providing 6 offers. In general, the WebbyPlanet community publishes 4 new Pennzoil coupon codes or deals each month, with discounts that range from 20% to 64% off. This page was last updated on January 15, 2023. Never miss a great Pennzoil promo code or online coupon and save money on your Auto Care purchase by using deals on this page.