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Re: [Shop-talk] Silicone brake fluid

Subject: Re: [Shop-talk] Silicone brake fluid
From: John Miller via Shop-talk <>
Date: Sat, 16 May 2020 10:38:39 -0700
References: <> <>
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0
On 5/16/2020 8:46 AM, Eric Russell via Shop-talk wrote:
> I would clean them out. It may not be required but now would be the best 
> & (only?) opportunity.

Now that they've taken rubber-safe chlorinated brake cleaner off the 
market, you have to buy Lectra-Clean
> Alternatively, suggest the use of DOT 4. It is 'regular' brake fluid 
> (even though the label on the can will likely say "synthetic") with a 
> higher boiling point than DOT 3. And it'd be totally compatible with DOT 3.

I have a hard time understanding why one would want to use silicone.

There's DOT 4, DOT 5.1 (which is not silicone) and now DOT 4+ which 
combines the temperature ratings of DOT 5.1 with the viscosity of DOT 4.


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