Best deal: $0.13 per fluid ounce (34.4% below the median) — Castrol GTX 5W-30 Synthetic Blend Motor Oil, 5 Quarts
Price range: $0.13 – $104.94 per fluid ounce across 23 offers. Median sits at $0.20.
Top brands showing: Castrol Edge, Castrol Gtx, Mobil Advanced.
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