B Bri Guest Mar 20, 2007 #22 Hi Guys, I know there has being a lot about which engine oil to use, as I just got my WRX I was going to use Mobil 1, 10w-40 or Mobil 1 15w50. As I have a choice of either. Which should I use?
Hi Guys, I know there has being a lot about which engine oil to use, as I just got my WRX I was going to use Mobil 1, 10w-40 or Mobil 1 15w50. As I have a choice of either. Which should I use?