brake fluid again

[lyndon Sharpton]

Has anyone used the Valvoline Snypower DOT-4 fluid? It is a synthetic brake fluid. sounds real close to silicone in the boiling pont and they say that it has low moisture draw.

[Craig S.]

Re: brake fluid again

I believe I have it in my old 81 pickup now, since it is DOT 4 it is compatable with DOT 3 and has the higher boiling point....Craig

[Terry M.]

Re: brake fluid again

I use Valvoline Snypower DOT-4 on all my cars, except the Corvette. Works great on all the systems, including those with ABS -- change it every two years. The Corvette has DOT 5.

[Duke W.]

Re: brake fluid again

All brake fluids are "synthetics" because the glycols that make up brake fluid do not occur in nature. They are "synthecized" through a petrochemical process. Silicone fluid is also "synthetic".

The word "synthetic" has become marketing hype. Plastic grocery bags are "sythnetic". If you buy a pair of shoes that aren't leather, they are "synthetic", too. The Valvoline product is a glycol based fluid that meets the DOT 4 spec, so it has a higher wet and dry boiling point than DOT 3. DOT 3 and DOT 4 fluids are fully compatible because they are the same chemical base. I use DOT 4 in my cars that have conventional glycol fluid. The Vavloline product is equivalent to the Castrol LMA DOT 4 brake fluid that is also commonly available at auto parts stores.

Duke