Hi Jon, >Castrol 5w-50 is one of the worst oils you can use on any bike that shares >engine oil with the transmission.
>First, it is NOT a true synthetic like Amsoil, Mobil 1 or Motul, but due >to pressure from the Castrol company it was >able to take advantage of a loophole and allowed to include the label >"Synthetic" for marketing. I will try to find some info on that, as I >recently discovered this marketing/legal loophole by accident. Any info you can find would be much appreciated as i'm using Castrol R4 fully synthetic . atb Nick T SA#12 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.427 / Virus Database: 240 - Release Date: 06/12/2002
