Blog | Oil Information & More

Buy1oils Recommendations For PowerStroke DieselCustomer question: "I have a PowerStroke diesel which of your oils and fuel additives would you recommend? Thanks!"Answer:We recommend using the Synshield Durability Advantage CK-4 15W-40,  Synshield OTR Plus CK-4 10W-30, or the Synshield Ultra Performance CK-4 10W-30, all of which meet the new Ford WSS-M2C171-E specification.Please keep in mind Schaeffer oil does such a good job cleaning we recommend not doing an oil analysis du …