Brake fluid is an extremely important component of vehicle maintenance. For a 2007 Impala, there are several brake fluids to choose from. The brake fluid will depend on the specific needs for your car. The factory brake fluid is a DOT 4 fluid.
DOT ( 3 ) brake fluid
DOT 3
DOT 3.
Look on the brake fluid reservoir cover, it should have the type of fluid required labeled on it. Most autos use dot 3 as I am sure your Impala does, unless it has a special brake system.
Dot 3
DOT ( 3 ) brake fluid in North America
D O T ( 3 ) brake fluid
DOT 3
According to the 2007 Ford Edge Owner Guide : ( DOT 3 brake fluid meeting Ford specification WSS-M6C62-A )
It's a dot 4.
The 2007 Chevrolet Impala has overhead valves (OHV).
According to the owners manual for Nissan Altima 2007 it is DOT 3.