Originally Posted by ARCOgraphite
M1 AFE is not synthetic, neither is your Royal Purple ILSAC / API certified product.
Do yourself a favour and run a spitzenklasse Deutsche moterenoel
e.g: Fuchs, Pentosin,
Vive la France ! ? TotalFinaElf, Motul
Really.
One Pentosin prduct is real synthetic. Others are not, including Motul (except V series).