Is the dodge avenger a zero tolerance engine?

No, the Dodge Avenger does not have a "zero tolerance" engine in the sense of a specific engine designation or technology called that. The term "zero tolerance" isn't a standard automotive engineering term for engines. It's possible you've heard it used informally, perhaps referencing the engine's sensitivity to maintenance or lack of tolerance for certain problems (like low oil), leading to potential catastrophic failure. However, this isn't an official designation.