Hope and Sram use dot5.1. shimano and magura use mineral oil.
In mtb world this is right.
In road caliper world, hope make versions of the RX4 that are compatible with Shimano shifters (mineral oil) and SRAM shifters (Dot 5)
nice gravel bike @d8mok - how do you find the panaracers? I'm looking from something a bit more road biased to replace my resolutes.