Mobil 1 - dont mention that wee wee. I wouldnt use it i my lawn mower.
I wouldnt use what opie recommend due to them coming on forums and telling everyone they knew nothing and that we should use the oil grade subaru recommend.
I like and have seen good results both in normal use and high extreme temps and track use (racing not just track day) and on engines that have been stripped and check for the sake of it using motul 300v comp 15w50 and would highly recommend it.
Simon
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