Castrol SRF Brake Fluid

[Rhod]

I've got access to some cheap(er) Castrol SRF brake fluid and I'm considering using it at my next brake fluid change on my daily driver (3yr old Audi TT). But as it's a 'racing' fluid do I have to change it more regularly than the normal DOT4 stuff? I was kind of hoping that I could do a change and then it would last for >2 years and I'd get the higher performance benefit in the meantime.

Thanks in advance for your help.

Rhod

[Rhod]

Just found this:

www.castrol.com/liveassets/bp_internet/castrol/castrol_usa/STAGING/local_assets/downloads/c/ccc.pdf says 18Months MAX.

[Rhod]

Thanks guys.

Was able to get it for £20 a liter (half price) but I doubt the benefit will really be worth the expense. Anywhere online that I can get the ATE stuff?