Coolant changed color
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Post Fiend
Joined: Jan 2009
Posts: 6,521
Likes: 11
From: Greenwood, SC
Coolant changed color
Hi, my main coolant reservoir surprised me today with a new color. Instead of the fluorescent orange color it is now kind of a dark blue/grey. At the top of the tank where the return line comes in from the main radiator there is a dark stain left by the flow of the coolant.
The secondary reservoir tank on the passenger side of the motor is still the bright orange color.
Any thoughts? 56,700 miles on the truck, coolant test strips have been used at the recommended intervals with no need for any action. I will check the pH tonight when things cool down.
The secondary reservoir tank on the passenger side of the motor is still the bright orange color.
Any thoughts? 56,700 miles on the truck, coolant test strips have been used at the recommended intervals with no need for any action. I will check the pH tonight when things cool down.
Posting Guru
Joined: Oct 2010
Posts: 1,777
Likes: 0
Hi, my main coolant reservoir surprised me today with a new color. Instead of the fluorescent orange color it is now kind of a dark blue/grey. At the top of the tank where the return line comes in from the main radiator there is a dark stain left by the flow of the coolant.
The secondary reservoir tank on the passenger side of the motor is still the bright orange color.
Any thoughts? 56,700 miles on the truck, coolant test strips have been used at the recommended intervals with no need for any action. I will check the pH tonight when things cool down.
The secondary reservoir tank on the passenger side of the motor is still the bright orange color.
Any thoughts? 56,700 miles on the truck, coolant test strips have been used at the recommended intervals with no need for any action. I will check the pH tonight when things cool down.
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
Hopefully you're at home and can stop by your dealer and ask them tomorrow (unless your tech doesn't work weekends).
I have not heard of this but I imagine you're in a short list of total 6.7L pickup owners with this many miles already.
I have not heard of this but I imagine you're in a short list of total 6.7L pickup owners with this many miles already.
Tuned
Joined: May 2011
Posts: 287
Likes: 2
From: Arvada, CO
My first thought would be oil, boy I hope not. Would definitely get it flushed and or sample tested for what may be contaminating it.
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Post Fiend
Joined: Jan 2009
Posts: 6,521
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From: Greenwood, SC
No work has been done to it, runs great as always, temps steady at 212-220 while towing fairly light. Never any smoke.
I have to drive out to Bartlesville, OK this weekend so I have no chance to get it looked at.
Thanks for the ideas.
I have to drive out to Bartlesville, OK this weekend so I have no chance to get it looked at.
Thanks for the ideas.
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Joined: Aug 2008
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From: Frederick, MD
How does your oil look? Trans as well? My concern would be cross contamination. As long as everything else looks ok then maybe it is just time for a flush.
At this point I am subscribing.
At this point I am subscribing.
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Post Fiend
Joined: Jan 2009
Posts: 6,521
Likes: 11
From: Greenwood, SC
This is where my work and lifestyle make things interesting. I will keep an eye for any fluid contamination, milky oil or trans fluid, etc. All levels are the same as when I got the truck 1 year ago, so nothing yet.
Funny thing is with my job, I have to drive another 1500 miles before I can sit down long enough for a fluid flush, truck is yelling at me for an oil change too. Same attitude I had with my '08, NOTHING can stop me from getting to my job site. If the truck will move, I gotta drive it. If it won't move (there's nothing wrong with it right now so stay cool) I gotta rent a truck and keep going. No matter what.
If anything interesting comes about, I will let y'all know.
Funny thing is with my job, I have to drive another 1500 miles before I can sit down long enough for a fluid flush, truck is yelling at me for an oil change too. Same attitude I had with my '08, NOTHING can stop me from getting to my job site. If the truck will move, I gotta drive it. If it won't move (there's nothing wrong with it right now so stay cool) I gotta rent a truck and keep going. No matter what.
If anything interesting comes about, I will let y'all know.
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Post Fiend
Joined: Jan 2009
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From: Greenwood, SC
When a hospital gets a new x-ray or MRI system myself and my crew put them in. When a new CT scanner arrives by truck at a hospital, if I am not there or late people get very uncomfortable really fast, both the vendor and the customer.
It's a fun job, I'm self employed, I travel a lot. My 53 week old truck has 57,300 miles on it so that's over 1000/week average. This week will be 2000 miles in 4 days. I tow a 16" tandem axle trailer everywhere I go that pretty much weighs about 8k with my tools and gear in it.
It's funny too, I will drive 1000 miles to work in Coffeyville, KS, work for 4 hours, and then drive home. Kinda crazy.
It's a fun job, I'm self employed, I travel a lot. My 53 week old truck has 57,300 miles on it so that's over 1000/week average. This week will be 2000 miles in 4 days. I tow a 16" tandem axle trailer everywhere I go that pretty much weighs about 8k with my tools and gear in it.
It's funny too, I will drive 1000 miles to work in Coffeyville, KS, work for 4 hours, and then drive home. Kinda crazy.
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