We may receive a commission on purchases made from links. Brake fluid, engine oil, coolant ... there's always something to keep track of, fill, or replace when maintaining your car. Is blinker fluid ...

According to The Drive, blinker fluid isn’t just the butt of a tired old joke. In an interview with Roy Sjoberg, the chief engineer who worked on designing the Dodge Viper, blinker fluid is real, and ...