Re: Oil change

Posted by TxGoat On 2023/11/1 11:23:23

Multi-grade oils such as 10W30 do a fine job in older engines. Conventional or synthetic. In hot climates, a 10W40 or 20W50 can be advantageous, especially in worn engines. Many people get good results with 15W40 oils intended for diesel engines. These can be economial when bought in the 2 or 2.5 gallon jugs. They are high in detergent-dispersants and made for heavy duty service.
I've never had a problem with using detergent oil in old engines, and I've run a bunch of them, many sourced directly from junk yards.