I have searched for this and have not found the exact answer. I am close to 60k miles. I want to drain the coolant and refill with new. I called Nissan to get a price on the coolant and it is $21.65/qt. He said I will need just under 2 quarts. This does not seem right at all. How much coolant does the Z hold? I was planning on using Prestone 50/50 but the back of the bottle says it is "great for topping off your coolant." Not sure if I should fill the whole system with that. I would imagine the OEM is concentrated and not premixed, but that is some expensive stuff.

 

I used off-the-shelf antifreeze suitable for aluminum block.

 

OMFG. It's in your car for 60K and you don't want to pay $45 to get the right stuff?? Don't be cheap! Get what belongs in the car!!

 

Thanks ****! I said that it was expensive, not that I did not want to buy it. My TV was expensive, but I still bought that. I was asking how much it holds. 2 quarts does not seem like it would be enough. It is a 45 minute drive to Nissan so I would like to get the right amount the first time.

 

The proper mixture ratio is 50% anti-freeze and 50% demineralized water/distilled water.

Cooling capacity with reservoir: 9.25 quarts.

 

Thanks for the info here, I think I need to flush my coolant because the engine gets too hot when doing a spirited drive up mountain roads, probably air in the system somewhere.

 

Thank you! Looks like I will need to get 5 quarts from Nissan.