whats the average lifespan of a plastic-tank radiator like they use on a 92-96 F-150?

 

The cores usually rot out before anything happens to the plastic tanks.

-Jon

 

The only thing I have had to do with vehicles with plastic end tank rads is to re-crimp or tighten the crimps holding the tank to the core as these will sometimes leak. Every rad I have crimped has stopped leaking.

Cleat