Lifespan of Crested Gecko

[lkraus1]

Hi friends! Wondering how much life my crested gecko has in her. She is going to turn 17 years old in a month. Healthy, never bred female, always lived solo. How much longer can she live in lifespan?

 

[acpart]

My crested gecko is 18 and still going full speed. I'm guessing maybe 20 is a good lifespan, but there are definitely exceptions in both directions.

Aliza