2 of my bikes use mineral-oil based hydraulic disc brakes, and it looks like upon digging up a MSDS for Shimano's fluid it's Shell Tellus C - http://www.my-sds.co.uk/Admin/ViewDocume...imaryReportId=0
Aviation hydraulic fluid(NOT Skydrol, MIL-5606-H) seems to be close in viscosity and kinematic properties to the Shimano fluid - and a few guys have used Pentosin CHF7.1 or Castrol HSMO for Jaguar/Land Rover applications without issue, my question is will the aviation stuff work with the seals in the system and will the brakes work erratically with a thinner/thicker fluid or will it be like MaxLife ATF which it will stay in viscosity?
Aviation hydraulic fluid(NOT Skydrol, MIL-5606-H) seems to be close in viscosity and kinematic properties to the Shimano fluid - and a few guys have used Pentosin CHF7.1 or Castrol HSMO for Jaguar/Land Rover applications without issue, my question is will the aviation stuff work with the seals in the system and will the brakes work erratically with a thinner/thicker fluid or will it be like MaxLife ATF which it will stay in viscosity?