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Re: ISO 4925 Class 5-1, 6 and 7 Brake Fluids
Posted to Castrol Forum on 2/25/2022

Example of a DOT 4 "Super" fluid that does NOT meet ISO 4925 Class 6 requirements [Castrol Super DOT 4 PDS]

The above is a perfectly acceptable DOT 4 brake fluid for applications that only require DOT 4 fluid (FMVSS 116 DOT 4). Unfortunately, some manufactur... Login to read more.

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