Phoenix Systems (3006-B) Brake Fluid Test Strip Kit, 100 Test Strips and 100 Rating Cards, BrakeStrip, FASCAR Helps increase the number of needed brake fluid exchange services you perform by providing proof for the needed service. Gives you and your team of service advisors confidence to offer a needed brake fluid exchange. Identifies potential brake flulid related problems before they occur -thereby ensuring your customers safety. Simply remove a test strip from the tube, dip it into brake fluid and 60 seconds later you will know the condition of the brake fluid. (scientific proof) The test follows MAP guidelines and DOT test standards to determine when to change brake flujid. Great for DOT 3, 4 and 5.1 brake fluid (most vehicles use DOT 3 or 4)