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Your cart is empty.The OTC 4598-DOT4 helps you catch bad brake fluid before it has time to destroy expensive brake calipers and other brake system components. It determines the quality of brake fluid and measures moisture from 0%-4%. Features LED lights to show moisture percentage, and automatically shuts off after 12 Seconds. 1.5V AAA battery included. Usage Instructions: 1) Remove cap from brake fluid reservoir; 2) Remove probe cap from brake fluid tester; 3) Press power button on top of tester. Green LED lights up; 4) Dip entire length of metal probes into brake fluid; 5) After one second, match color of LEDs with color chart to determine brake fluid quality. Tester automatically powers off after twelve seconds of inactivity.
Ching-Ho Cheng
Reviewed in the United States on September 6, 2024
I put down accurate reading because I did not have other brands to compare with. I trust OTC product. Hopefully, it gives a more accurate reading than the cheaper models.
jose
Reviewed in the United States on December 7, 2024
Muy buen producto
Rob
Reviewed in the United States on May 1, 2022
Used to text brake fluid and hydraulic clutch fluid on Harley-Davidson. Quick and easy to determine moisture content in DOT4 fluid. Not for any other DOT fluid.
Daniel Williams
Reviewed in the United States on July 30, 2019
Used to check the brake fluid on my Harley, said the fluid had a 4% moisture level. Tested a brand new bottle of DOT 4, claimed it was from 2% to 3%. Spend the extra mo ey and but the Harley tester.
elgallo
Reviewed in Canada on July 31, 2018
Worked great
Customer
Reviewed in Canada on July 2, 2016
Works as expected
Customer
Reviewed in the United States on May 27, 2016
good product
Alejandro Guerrero
Reviewed in the United States on February 1, 2016
This is a good tool but i wouldnt suggest to purchase . Brake strips are alot better should had went with those
Alvaro Iglesias
Reviewed in the United States on December 11, 2016
I used it the first day I got it!!! It has already payed for itself in work sold!!
bowtie1983
Reviewed in the United States on November 9, 2016
Worthless. Even tells you a brand new bottle of brake fluid is bad.
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