What happens when you mix DOT 4 with synthetic?

What happens when you mix DOT 4 with synthetic?

2) Mixing the DOT 4 and DOT 4 synthetic has caused some issue with the rubber seals. 3) something I haven’t thought of and won’t know til I get it all apart. Obviously I don’t want to be mixing fluids wrongly but I also don’t want to go replacing the brake system unnecesarily either ! So the question ..

Can you add silicone to a brake system?

Silicone fluid should not be added to a system that contains even small amounts of glycol fluid or contaminants. Merely bleeding the system is not enough, as there will be pockets of old fluid and sludge that will not bleed out.

Which is better dot 5 or glycol based brake fluid?

The advantage of the silicon based DOT5 fluid is that it absorbs no moisture whatsoever, unlike the glycol-based fluids. Because it is also chemically inert it won’t react with other chemicals in your braking system, nor will it even react to your car’s paint which the glycol-based fluids will.

Why does glycol not bleed out of silicone?

Merely bleeding the system is not enough, as there will be pockets of old fluid and sludge that will not bleed out. Silicone fluid tends to concentrate any residual glycol fluid, moisture and sludge into slugs instead of allowing their dispersal throughout the fluid, as does glycol fluid.

Which is silicone DOT 5 or dot 1?

The DOT 5 is silicone Dont be confused DOT 5.1 is non silicone and that is what you want.

Which is better dot 3 or dot 5 brake fluid?

Earlier this month the question of Dot 3 vs Dot 5 came up here on the forum. Dot 3 & Dot 4 are Gycol based brake fluid & Dot 5 is a silicone based fluid. If we introduce Dot 5 Silicone to a Dot 3-4 Glycol base the Silicone will literally float apart from the Gycol.

Can you use DOT 5 on DOT 3 glycol?

If we introduce Dot 5 Silicone to a Dot 3-4 Glycol base the Silicone will literally float apart from the Gycol. Their chemical structure inhibits them from ever becoming compatible & as a matter a fact the Silicone used in Dot 5 can & will attack any rubber component which is not compatible with the chemical structure of the Silicone based fluid.

Can you mix glycol based fluid with silicone?

Dot 5 ( silicone based) is usually Purple in color. Before adding any fluid, MAKE 100% SURE what you have in there, as glycol based fluids ( Dot 3, 4 and 5.1 ), WILL NOT mix with silicone. You have to start with a fresh system to go between the two fluids or disaster and coagulation will result.

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