5-Qt Castrol GTX Full Synthetic Motor Oil (5W-30) $19.35 w/ S&S

Amazon has Castrol GTX Full Synthetic 5W-30 Motor Oil, 5 Quarts for $20.37 - 5% when you check out via Subscribe & Save = $19.35. Shipping is free with Prime or on $35+ orders. Price $5.89 lower (23% savings) than the list price of $25.24. $4.61 lower (19% savings) than the previous price of $23.96.