15w40 royal purple?

[GSTurbo1]

I'm in upstate sc and have pretty hot summers with mild winters i drive pretty hard and go to the drag strip occasionally. Would 15w40 be too thick for my car I'm trying to quiet my oil pump a little bit

 

[Dsmkauai]

I run 20w50 all year long here in Hawaii. 15w40 should be fine by you and your engine will most likely like it better anyway.

 

[GSTurbo1]

Ok cool... I'm going to step up to 15w40, thanks for the input!!