At the standard treat rate of 1 ounce per 5 gallons we cannot honestly believe any harm will come to any of the fuel system parts,can we ?
OP
I add tc-w3 to every combustion engine I own,gas and diesel. From my generators and compressors to my Harley and all my bikes and every car/truck I own/maintain.
My work vans have crazy high miles yet run fantastically,and I've never had an injector issue,with over 350k on them.
In fact I cannot recall having an injector issue ever,on anything,no carb problems on the generators/compressors either.
And everything I own runs as good as,or better than new,so I won't be changing any of my habits any time soon.
Not only that but I achieve in excess of the advertised mileage on everything too.