Wanting to change the clutch fluid as a part of my spring maintenance. Was at the hardware store yesterday picking up some other non-bike items and decided to check their limited automotive section for the dot-4 brake fluid. They had two bottles of Castrol synthetic Dot-4 brake fluid. Wanting to do my part with the social distancing thing I thought I’d get the two bottles and save a trip into the automotive store. Perfect. All is well. Today I decided to watch Freds clutch fluid change video and he mentioned to not use synthetic fluid! Is there a reason or is it his personal preference? I could go get another bottle of the regular Dot-4 but would prefer not to if it’s irrelevant.