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Can i put Castrol CRB plus(isnt this for diesel engines?) in my Optra as it has 20W/40 grade.Or is Castrol magnetic better.Magnetic comes only with 10W/40 grade.Is it ok if i go ahead with 10W/40 grade oil? I live in Bangalore. thanks.

By Omar on Feb 27, 2008


  • Expert Hi,

    Castrol CRB is for commercial vehicles like trucks , buses . The 10W-40 .oil is a good choice for controlling engine wear and preventing oil breakdown from oxidation.

    20W-40 Provides maximum protection for high-performance, high-RPM racing engines. Excellent choice for high temperature and heavy loads such as driving in the desert or towing a trailer at high speeds for long periods of time.

    It is always advisable to use the engine oil recomended by manufacturer mentioned in owners manual.
    Answer by Shiva Shankar on Sep 13, 2008

  • price
    Answer by Gaurav on Mar 30, 2011

  • Dear friend,
    20w-40 is a thick oil with compare to 10w-40
    according to the science thinner liquids flows quickly as compare to thicker ones.
    the commercial vehicles have all big engine parts as compare to light motor vehicles, which has very fine gaps in engine moving parts so the 10w-40 circulates more faster & easier.
    Answer by Jameson on Mar 31, 2011

  • can i put crb plus oil my maruti 800 car
    Answer by P.madhu on Mar 22, 2014

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