Brazilian state oil major is to run refinery tests this month in preparation for the IMO 2020 fuel rule-change.
It said: "During the period of tests, the marine fuels to be offered in the port of Santos most likely will contain a lower viscosity."
According to the Platts news agency, it added that it can guarantee ISO 8217:2010 availability, but will be unable to know the exact viscosity of the products beforehand.
