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  1. P1521 Incorrect Oil Type DTC

    General Magnum Discussion
    I have never used anything but 5w20... so why does the MIL keep lighting up and giving me this code? I clear it, it comes right back... I have heard I may need to go to the stealership and get a reflash? Do they charge for this? (I'm guessing yes, they charge for everything). Any input greatly...
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