Yes 2 years is good - what i always do on my cars and its what Morgan recommend as well it turns out. I Spoke to a Morgan master tech the other day and he feels confident that its safe to extend to 3 years, espically on lower mileage/dry use cars. Seemed perfectly reasonable to me but i'll stick to 2 years as i found it discoloured by 2 years just as DaveW said. After all DOT4 is not expensive.
However maybe if your paying labour charges on top it might be prudent to extend to 3 years however.
Something that gets neglected/overlooked sometimes - the clutch fluid. Suffers just like brake fluid obviously and keeping it fresh will help extend the life of master and slave cylinders.
The master tech also mentioned that anti-freeze / coolant doesn't last forever ( unless its Evans waterless coolant) and depending on what type used this needs changing between 2 and 5 years - 3 years being a reasonable time and what he recommends. ( Helps avoid corrosion etc).
