We use to blend and package for Castrol, but no, I do not work for them. I work for Amalie Oil Company. We own Wolfs Head, Amalie, Xcel, Rallye and Value Tech. We also blend and package 1/3 of the nations Advance Auto Parts Oils and ATF's (we only package the ATF+4, we do not blend it, it is bought from Ashland (Valvoline) in bulk and packaged in Advance bottles), Federated Auto Parts, Professionals Choice Auto Parts, Pronto Auto Parts and quite a few other private labels. We also do bulk container blends and shipments for SOPUS (Shell) for oils like Rotella.