Originally Posted By: finalyzd
Have a 2007 350z. What's a good coolant to use?
Nissan wants 25 a gallon for there extended life coolant which I think Is way too much, what othere choices are there. It has prestone in it right now I think its extended life came from our bulk container at work. It says universal also
Personal experience having an 03 Altima, I agree with you. I checked the price myself this week and that was the quote. Some are being quoted $31.
And, understand that Nissan recommends 2yrs/30k maintenance interval, no matter the coolant used. That is a fairly short interval to have to be concerned about whether the coolant is long life or not.
If you don't want to use pricey silicate free Nissan proprietary, there are choices, but limitations to each.
A.)Zerex Asian Formula sounds good, and it is Asian recommended silicate free. Problem, only comes in premix, which means if you can't find or reach block drains, it is vitually impossible to great a 50% or greater coolant concentration with a flush.
B.)Peak Global Life universal non-2eha formula would seems good alternative, and is asian recommended silicate free. Problem, it's very tough to find in full strength. Perhaps your Napa dealer has it,(mine doesn't) or can get it for you at a reasonable price.
C.)Traditional green, can take some effort to find. Napa dealer may have it or some AAP's under Peak name. Saw some under Chevron Supreme name in a local grocery story. But, it contains some silicates and but would fit the short 2yr interval.
D.)G-05 contains silicates, but can be found full strength Zerex brand and Motorcraft Gold. JMO, but I'd pick the traditional green before G-05 for a Nissan with the 2yr interval.
E.)The universal silicate free coolants Prestone EL and Peak Long Life. Easy to find in full strength at a reasonable price, and what I've used for ~4yrs now with a total flush and no issues in my Altima and since dumping the Nissan OE. However, they do contain 2eha, which has shown some issues with intake gaskets in some GM cars. Haven't seen any documented issues in Nissan's using them with the 2yr/30k interval.
HTH.