I swear it isn’t.. but I do have a question specifically regarding Castrol GTX 20w/50 Classic oil. I bought a case to use in my ‘78 R100/7 due to the high zinc content. I had been using Castrol GTX 20w/50 4T. Got to wondering if I am missing anything specific by using the Classic over the 4T? Only thing I found in the Castrol webpage is that the Classic appears to have slightly higher levels of zinc. Not sure sure if I would benefit more overall by using 4T.
Or maybe it just doesn’t matter. In which case I apologize in advance for this post. Lol.
Thanks for your thoughts!
Or maybe it just doesn’t matter. In which case I apologize in advance for this post. Lol.
Thanks for your thoughts!