Fuel additives

[Rygrego]

Thanks for your reply!
Any advice on how to keep
Carbon of the valves?
I’m an old man and this has
To be my last truck
Thanks

I remove the line from the pcv valve and with the engine running spray a full can of CRC Intake Cleaner through the hose until empty then let it heat soak for about an hour then go out find an open road and drive it like you stole it. Every year or so and you'll have no problems.