How To Clean Coolant Tank for car - PERMANENTLY & paint

Regularly clean the Mitsubishi car coolant tank
Yellowing of the coolant tank. There is no need to clean up here, the yellow color that can be seen on the cooling tanks is the result of a chemical reaction.
Things I used in cleaning
1-Acid toilet cleaner
2-Carburetor foam cleaner
3-Laundry soap
4-White spray paint

#Coolant
#Tank
#Clean