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Re: No visible leaks, but air getting into hydraulic system
Posted to Technical Discussion Forum on 10/10/2025 7 Replies

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Short Answer: YES!

But you might be able to find a DOT 4 that is technically slightly thicker than DOT 3.

ANY DOT 3 is still effectively interchangeable with SAE J 1703 and ISO 4925 Class 3

The... Login to read more.

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