Unocal is located at 2756 N Tustin St, Orange, CA. This business specializes in Automotive Oil Change. Unocal is open Mon, Open 24 hours; Tue, Open 24 hours; Wed, Open 24 hours; Thu, Open 24 hours; Fri, Open 24 hours; Sat, Open 24 hours; Sun, Open 24 hours and accepts American Express, Discover, Mastercard and Visa.