Home Automotive & Car Tech Castrol 5W-30 GTX Magnatec Motor Oil (5-Quart) $15.20 Automotive & Car Tech Castrol 5W-30 GTX Magnatec Motor Oil (5-Quart) $15.20 By ARCOM - 28 March 2018 162 0 SHARE Facebook Twitter Go to the deal page: Castrol 5W-30 GTX Magnatec Motor Oil (5-Quart) $15.20