Hi Guys,
I'm about to do an oil change on my Series 2 R33 GTS25T, and I've come across a New Zealand supplier who sells Royal Purple oil, now I'm completely stuck on which Royal Purple oil to purchase, they range hugely in price $10-$25
The cheaper oil:
(Royal Purple Motor Oil 10W30 1QT (946mls)
(Royal Purple Motor Oil 10W40 1QT (946mls)
(Royal Purple Motor Oil 20W50 1QT (946mls)
Then you have the stuff which is about $20-$25 per quart:
Royal Purple Racing Oil 21 5W30 1QT (946mls)
Royal Purple Racing Oil 51 20W50 1QT (946mls)
Royal Purple XPR 10W40 Racing Oil 1QT (946mls)
Currently I'm running a Shell Helix 5w40 Oil, so I assume I should go for the 0w30? Or is that to thin? Am I alright to use the cheap royal purple, and is it still good stuff? And which weight should I use? My car is a little loud on idle, turbo is does make some rattley noises.
Also I assume i'll need 5 quarts? Or should I buy 6?
Cheers Guys