Found a good study the other day on SAE 5W-30 Synthetic Motor Oils done earlier this year.
While conventional motor oil sales remain flat, synthetic motor oils continue to
demonstrate strong annual growth. Motorists now recognize that synthetics
legitimately improve engine performance, particularly in engines that operate
under severe service. Performance cars and many traditional family vehicles
today leave the factory with synthetic oil installed and recommended as the service
fill, contributing to syntheticsí increased demand. Oil manufacturers have
responded. Many now formulate multiple synthetic motor oils, often led by a
flagship product that represents each companyís most advanced technology.http://www.amsoil.com/lit/g3115.pdf
Just wish they would have added Motul to their study as well. Good read either way.
If it tastes like chicken keep on licking, but if it smells like trout....