My cousin just put a blower on his 94 Mustang 5.0 and now im curious as to what oil he should use. He got it dyno'ed and its pushing around 470hp with 10-11psi of boost. He does drive it pretty regularly and it's mostly cruising around/city driving. He has been to the strip a few times but he is more into autox and thats actually what the car is set up for. Right now he is using MotorCraft 10w30. I have heard good things about MC..should he just stick with it?