okay well i just got a 2008 g37 coupe with around 40,000 miles. i wanted to know how often i should change my oil and what is a good brand to use for the g37 engine. i was looking and saw that the company royal purple looked legit but i have no idea about it, anyone have any experience with it?

 

Search my friend. The oil section has tons of threads with your answers

IBLT!

 

Sweet Jesus! Another freaking oil thread and in the wrong forum too - bonus. Buddy, you will need to take a look around in the correct forum to find opinions on this. Either that or read your owner's manual, whichever is more convenient for you. There's a thread called The Definitive Oil Thread. Here's a hint - it's in the Stickies that everyone should read before posting questions.