Fresh engine, 2200 miles on it... pulled my radiator out to pull out the AC condensor... drained the coolant and this is the gross shit that came out...... what's goin on?
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Why is my coolant brown/black?
- Thread starter Justin
- Start date
MDCmotorsports said:
yep. also ive noticed redline water wetter will make the coolant a funky color.
id give the coolant system a good flush then refill. also may want to scrub up the overflow bottle. they often get a layer of grunge on the inside over the years.
Fresh engines can make some funky liquids. In between the new gaskets and assembly lube it's quite a mess. Flush the system if the gunk returns then start looking for a problem.
Also if you have an old turbo on a new engine that has water cooling on it.
Some times I have found that the inside of the water passages on the ct26s are horrible inside.
Some times I have found that the inside of the water passages on the ct26s are horrible inside.
just flush your cooling system 
Mine had same color after last rebuild, so i've drained it, cleaned with special liquid cleaner and now I have nice, red coolant
Mine had same color after last rebuild, so i've drained it, cleaned with special liquid cleaner and now I have nice, red coolant