I went to fill the coolant tank today because it is at min line and I noticed some brown debre in the tank. Has anyone else flushed or filled their coolant system and noticed some brownish debre in their resovar tank? Also when I took off the radiator cap, the fluid was allready at the top.

 

It's a very cheap easy maintamamce to perform.

 

I haven't done it in my Z. But I did it in my last car. Look in the owners manual to find the drain spots.

 

have you ever flushed your coolant system? I change mine out every 2 years. The preservatives in the coolant only allow optimal life of about 2 years. It's easy to change out.

 

What type of cooliant do you use. I picked up the prestine 50\50 universal cooliant.

 

Just stick with Nissan coolant.

 

nissan coolant with a bottle of royal purple water wetter