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International Automotive Technicians Network
Re: Automotive Journalism II
Posted to Industry Issues Forum on 5/20/2024

Class 6 & Class 7 brake fluids are sub categories of DOT 4 & DOT 5.1 respectively. Class 6 a much higher standard for DOT 4 that is REQUIRED in most modern passenger cars (since 2002)that require DOT 4. Class 7 is a much higher standard for DOT 5.1 that is req... Login to read more.