0w-40 vs 5w-40?

[dekaiser]

thanks for clearing it up... from my limited knowledge... all engine oils made in japan came from the same oil company...they just tweaked here and there with oil additive and stuffs to make it different brands...

 

[beatnik]

all engine oils made in japan came from the same oil company...they just tweaked here and there with oil additive and stuffs to make it different brands...

maybe.. but need confirmations from sifus here.. last time i used idemitsu oils.. now difficult to get but from what i can see, eneos oils are identical (except for molybdenium) :proud: