What's the best(safest) fuel injector cleaner for the 6.2? What are your thoughts about Seafoam? I want to use a safe product that won't harm the fuel system.

 

I've never used Seafoam, but by far the best I have tried is Techron.

 

i would go with techron also.

I try to run as much top teir gas as possible, so I keep the injectors clean in the first place.

 

Ive used Valvoline complete fuel sys cleaner with excellent results. I bought a Ranger a few years back that was running rough. After finding nothing wrong with it I fig it had to be injectors. I used 2 bottles in 2 tanks and the problem went away. Its all I use now because i know it works.

 

My 6.2 thrives on whatever 87 octane gas is on sale.

 

Redline SI-1 is a good one...so is the Chevron Techron.