I have never thought about it until now, changing to
synthetic oil that is, but after reading these threads I am interested. I still have a fresh motor, about 600 miles on my 351W with 435hp, and switching to
synthetic was never a consideration.... until now. Is it really that much better, and does it really give you more horsepower!?! I am far from being an expert on this issue but now I am interested in learning more. Any help?