I just had to change my water pump at 81,000 miles. It got to where it was leaving like a sieve and I was putting about a gallon of antifreeze in every 2 months.

I removed the old pump with no problems, bolted on the new one and flushed it out 3 times. The first time was with the Prestone Flush-N-Fill kit. I ran it on the garden hose with petcock open and radiator cap off to get out all the old antifreeze. I then flushed it with the Prestone coolant flush, with the system on water and everything closed, then flushed once more with the Flush-N-Fill to get all that out. New radiator hoses and a new heater hose, now refilled with Mopar antifreeze.

After that long intro, here comes the question. The Mopar antifreeze is reddish, and when I filled the radiator, it was reddish. After running the truck the antifreeze is now orange. Anybody else seen this? Surely it can't be anything left in the system after the flushing. Is this normal?

 

Unless you pulled the drain plugs from the sides of your motor then yes there was still antifreeze left in your motor. It's not that big of a problem but if you are worried about it just flush it again in a week. Did you get the right coolant/water mixture?

 

Your ok. Reddish/orange is the right color. The little bit of old stuff left won't hurt anything.

 

Hmmmm mines a nice yellow straw like colour.
Almost like urine funnily enough lol.
50/50 mix MOPAR HOAT anti freeze and distilled water.
Al.

 

Shouldn't be yellow at all. When was the last time you flushed yours out? And have you used a tester on it to see if it's 50/50?

 

Mopar HOAT is a pinkish color straight out of the bottle. Zerex HOAT is a golden color.

 

Brand new coolant water pump Tstat definately a 50/50 mix and full flush only a few moths ago.
I have seen MOPAR in two colours. The pinkish red and the yellow straw colour.
Al.

 

Oh OK I've never seen the zerex stuff because I don't even know where to get it from. But as long as it is HOAT then it's all good ^_^

 

I filled with Mopar antifreeze in a 50/50 mix. I just thought it was weird the color would change. Last thing I want to do is change it again, just spent $60 on the antifreeze!

 

Zerex G-05.
It was like $20 for a gallon jub at O'reillys. I know they don't actually have it on the shelf, you have to ask for it.