I've also read 2 years for brake fluid changes. The Valvoline synthetic fluid is a very good fluid for a reasonable price. You can use a turkey baster to get most of the old fluid out of the resevoir, then fill it up and bleed each brake line with about 25 pumps of the brake to push the old fluid out and the new fluid down the line. Refill the resevoir after each line is finished and you should notice a firmer brake pedal when your all done.
