Posted 2/4/2025 20:55 (#11089504) Subject: Older spec 15w-40 oil, Lucas Magnum CI-4 for pre 2007 ?
Statesville, NC
Anyone running Lucas Magnum CI-4 oil for pre 2007 diesel engines? They are claiming it's better for older engines than CK-4. Rural King has it for $23 a gallon, not the cheapest, but not the most expensive either. Your thoughts? https://www.lucasoil.com/pdf/06_TruckOil_15W-40Magnum_PDS.pdf