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Discussion Starter · #1 · (Edited)
Hi fellas,

I have a 12' Forty Eight that is due for oil change, i do have a few bottles of 300v 20W50 from my previous sports bike and was wondering if it would be compatible with the evo engine...

am aware that most brands do provide a v-twin variant in their oils, however, was hoping someone could shed some light as to the critical necessity for harleys to only take v-twin oil.

cheers and happy 2021 everyone!
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