Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts

• Amazon now offers Castrol GTX High Mileage Synthetic Motor Oil 5W-30 5 quarts, now $20.97 (regularly $23.72).
• Prime members get free two-day shipping, and regular members get free shipping on orders over $35 within the contiguous U.S.
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Editor's Pick: If your car has over 70,000 to 80,000 miles, this oil is a great choice for your next oil change. Its seal conditioning formula helps reduce minor leaks common in older vehicles, and it slows down oil consumption. The 5-quart size fits most cars for a single oil change, making it easy to do it yourself.