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synth

  1. haggis

    Swapping from fully synth to semi

    Just wanted to check this. I'm switching oil tank for a replacement one and new oil filter. Been topping up with the remnants of oil from the last service, castrolGPS fully synthetic oil, but I've gone and bought motul 5000 which is semi synthetic this time. I know u can't mix them, but...
  2. B

    10W40 Semi Synth.. Ok for RSV??

    I use Shell fully synth Oils in my race bikes.. Ok to use 10W40 semi in an RSV? Thanks in advance..