questions

[rdw5]

I am new to the forums so bare with me.
I have a 2003 7.3L and wanted to know if I should be worried about a discolored coolant expansion tank. I bought the truck with 91,000 on it in 2008 and changed the heater core at 100,000. I just changed the water pump on it at 127,00. I did pull the expansion tank at 118,000 and clean it and it is still as clean today as it was then. I have no anti-freeze in the oil. Antifreeze still has a good green color. Just wanted to make sure the previous owner didn't do something that I am not seeing. The truck runs good. Am I just worrying over nothing?

Also has anyone ran the Hot Shots Secrets oil additive? I wasn't sure if it is worth the money.
Thanks for the help.

[Dietoremain]

I would say its just dirt, you may want to look into the diesel site coolant filter kit, im getting mine asap, and stay away from oil additives on a 7.3 not a good idea.

[rdw5]

Thanks for the advice. Thats what I need to know especially about the additives.

[ToMang07]

[codysweat]

www.dieselsite.com has the coolant filter kit i got one there sweet. also check out the 203* thermostat while your in there messing around.

[rdw5]

Thanks for the advice. I will look at the coolant filtration system. I did install the 203 degree thermostat when I changed the water pump about a month ago. It was worth the money. My truck runs smoother now with the new thermostat.