Quote:
Originally posted by 7500rpm civic
royal purple full sinthetic and a mobil 1 filter
5w30
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not to try and be an ass or anything but i've heard that royal purple shoudln't be used on a daily basis since it breaks down very easily. i've heard that its mainly just supposed to be used to gain a little extra power at the drag strip and then changed immediately. just wondering if you've had any problems with it or anything. anyways i use mobil 1 5w30 and usually a fram or honda filter.