Semi-Synthetic Oil

Discussion in 'Other Off Topic Forum' started by spidr, Dec 4, 2003.

  1. spidr

    spidr Formula Junior

    Nov 13, 2003
    Is this stuff legit? Technically you could use a bottle of Dino and put one drop of syn and it would be semi-synthetic. Does anyone know more about this stuff. The Castrol semi-synthetic interests me and it is only $2.79. I know it's not Mobil 1 but is it actually any "better" than plain dino or just thinner?? Any schools of thought on this?
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