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1999 Chevy what? What kind of 1999 Chevy. different models have different sensor positions
dot3
can use 10/30 or 5/30 for colder climatesnew answer5w30
DOT3
5w30
A Geo Prizm requires regular DOT 3 brake fluid. Brake fluids labeled DOT 4, or "exceeds DOT 3 and DOT 4 specs" (such as Castrol GT/LMA) are also acceptable; these DOT 4 fluids have higher wet boiling points.
A 1999 Dodge Caravan uses DOT 3 brake fluid.
Just regular DOT-3 brake fluid is what you need.
DOT 3
DOT3
That would be the 4L60E
Fronts are usually disk, rears are usually drum. Brake sizes can vary depending on the capacity of the vehicle and whether it has the towing package.