Tried to figure it out searching, but it gets confusing as to what the latest thoughts are for the best engine oil in a 50 235ci. I'm thinking 10w-30, but I've also read non-detergent was needed, so I'm just not sure? Sorry if this has been covered a million times before.
Last edited by 4100 Fire Truck; 02/22/2018 4:19 PM.