Walk into almost any dealership today and you will hear the same confident phrase: “lifetime fluids.”
The idea sounds simple and stress-free. The manufacturers of automatic transmission fluid, coolant, and differential oil state that their products need no maintenance because they are designed to function indefinitely.
The system seems perfect to many car owners; it offers three benefits, which include decreased maintenance expenses and reduced maintenance tasks.
The actual duration of "lifetime" in practice proves to be more complicated than its name suggests!