Home Slickdeals Rotella T6 Full Synthetic 5W-40 Diesel Motor Oil – 1 Gal. $17.94 Slickdeals Rotella T6 Full Synthetic 5W-40 Diesel Motor Oil – 1 Gal. $17.94 By ARCOM - 4 August 2020 123 0 SHARE Facebook Twitter Go to the deal page: Rotella T6 Full Synthetic 5W-40 Diesel Motor Oil – 1 Gal. $17.94