Dowler-Karn - To all our valued customers .... a reclassification. As of July 1, 2019 Mobil Delvac 1300 Super 15W-40 & 10W-30 are now classified as SYNTHETIC BLENDS. As well, the Delvac
Mobil Delvac™ Extreme Warranty | Mobil™
Mobil Delvac™ Extreme 10W-30
Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 2.5 gal - Walmart.com
Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 1 Gal 3 - Body Logic