On the whole 5w40 fully synthetic will be fine. Just go with whatever is cheapest.I put Castrol edge 5/40 in my fn2 but Tegiwa do a Honda oil 5/40 cheaper which is best I'm confused as I try to use all original Honda parts
I just had my fn2 serviced at TGM sport who are well renowned and they use Shell helix ultra 5w40 fully synthetic. Previously i had 0w30 fully synthetic.
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They use the shell one now, saw a fresh delivery arrive.I thought they were using Petronas Syntium 5w40?
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