I did have an oil analysis done on the original oil and the company said that it tests as 5w-20. However, it will be very slightly thicker due to the anti scuff additives that are used on parts when an engine is assembled.Okay so what type of oil is in our cars from the factory? The reason im asking is it seemed to me like the first oil change I did. The oil was a little thicker than the 5W-20 motorcraft Synthetic blend oil is.
Thanks That makes sense. My car is at 14k. I got a sample but unsure if i wanna pay 65 bucks for the testing. I don't have the famous tick but it has a little rattle at about 1500 rpm. Just thought maybe getting a analysis done to see if i has any abnormal wear.