i wanna switch to synthetic oil for my 94 gt. i have castrol gtx 10w-30 and a fram filter in it now. i though about royal purple and castrol sytec. i heard that castrol syntec isn't the best synthetic oil and i also heard that royal purple isn't good if your car has over 90,000 or so miles. so i just wanted to hear what people have to say. my friend, who has a 2000 gts said that mobile 1 and an oem filter is what people recommend for his car. so what is the best synthetic oil and filter for a 6gc?
"Slow your roll"http://www.flickr.com/photos/g_styer/http://www.facebook.com/profile.php?ref=pr...mp;id=601896863
