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  1. Join Date
    Jan 2003
    Posts
    973
    #1
    am i right? ito na ba highest rating for oils?

    just saw castrol magnatec at handyman and SM na rating nya. 10w40, at 950per gallon.

    does this mean better protection than api sL rated oils like shell blue 10w40?

  2. Join Date
    Mar 2006
    Posts
    17,595
    #2
    ^what's api sL rating?
    and si castrol magnatec the highest one in that rating?

castrol oils.. api SM rating na??