2008 M35 engine coolant

[fl_infin]

Hello fellow M owners-

About 4 months ago I purchased a 2008 infiniti M35 rwd.

I check my fluids about once a month, an this morning when I checked them I noticed that my engine coolant was almost to the min. line.

When I was reading the owners manual it said to use "Genuine NISSAN Long Life
Antifreeze/Coolant (green)" or Equivalent

I went to advance autoparts today and bought some pre mixed 50/50 Peak Long Life antifreeze, and it said it is compatible with all makes and models.

My concern is that because it is not OEM that it won't be as high a quality or that it will not be compatible with the M's radiator system.

Has anyone ever used this product before, or have any feedback??

Thanks in advance!

[Ilya]

You're probably fine...but just an FYI when I had a Maxima, most of the guys on that forum used either Toyota OEM (red), Honda OEM (blue), or Nissan OEM (green). They are all the same formula I guess, just different colors and prices.

[Larz]

Ive seen posts in here and on the NIssan forums that state Prestone and Peak are compatible.
I know when I had my gear box flushed and filled, it turned out Nissan transmission fluid is made by Castrol and then re-labelled with the Nissan logo and all the dramatic warnings about not substituting it with anything BUT Nissan fluid.
I reckon it's the same with coolant as well - probably made by Prestone or Peak and then re-labelled as Nissan.
One thing I remember about coolant is do NOT use Dex-Cool (GM) as it supposedly causes deterioration of seals and forms sludge and such in our cars.

[fl_infin]

Thank you both!
I figured it was fine but having a second or third opinion is always helpful.

[CPJ LB]

you're fine with Peak..that's what I have in my cooling system now. I changed out the radiator a couple of months back and filled the new radiator with Peak....no issues. Just be sure to 'burp' the system....there's a pressure relief nob/valve near the rear of the engine (by the firewall). It takes a Phillips head screwdriver to unscrew...allow some coolant to seep out then close it back up



**EDIT*** just noticed you have an 08 M35, it might be the same location, but double check with the owner's manual or Google.

[seldomseen]

You're better off playing it safe and just buying the coolant from the dealership. It should cost around $19.99 plus tax. Something seemingly as simple as coolant can reak havoc on the vehicle's cooling system and performance. Particulary when it comes to how sensitive Nissan's engines are.

[Ilya]

And because you're in FL, based on your name...I recommend a bottle of water wetter to be safe.