Originally posted by ajdulina:
I've seen 5W-20 in almost all parts stores now. Its not a synthetic blend(unless thats what you want, its availible). ITs availible from most oil manufacturers. The Duratec was designed to run a light oil, and i think this change was due to cold start wear. I used to get alot of cam noise starting up every morning for about 4-5 sec. until the oil got up there, i think the thinner oil should cut that time down to just a sec or two.
Motorcraft claims their oil is a synthetic blend. It says so predominately on the bottle. I don't know if other oil companies also make that claim (I doubt it).
