Injector Life Expectancy

[Unilevers]

if it were mine between 750-800k miles i would change em out. they would also NEVER get back in after a inframe. but to me a inframe is alot more than pistons and liners.

the internals start to wear out and you start to get crappy spray patterns. The nozzle wears out and they get drippy and they start to get lower cracking pressure which leads to a inefficient engine and low power etc. Many out there with worn out ones forget how good a truck really can run.