Originally Posted by subaru604
Have you guys heard of Motul or Amsoil? Are they better than Mobil 1 for the 2013 Impreza's?
I used to use Mobil1 0-40 in my MINI Cooper S. I ahve a good friend who is a Euro mechanic as well as the head mechanic for a few SCCA race teams specilizing in MINIs and Porsche. He recommended Motul to me and I switched over to that for the MINI and it's all I've used in the Subaru so far as well. I use 5-40 8100 X-Cess in the Subaru now. After 70k miles in the MINI the valve covers and vales looked great, real clean and no wear. I haven't done an oil analysis but I see no reason to stray from Motul and he sells me 5L for $40 cash.