Hi everyone

Back to out discussion – if 10w30 oil is – or is not recommended by Nissan…

I have opened Maxima’s Owner Manual book. Below are – what oil Nissan recommends:

5w-20 – high +14 F (-10 C), low – below –22 F (-30 C);
5w-30 – high +59 F (+15 C), low – below –22 F (-30 C);
10w - high +59 F (+15 C), low - -4 F (-20 C);
10w-30, 10w-40, 10w-50 – high – upper +104 F (+40 C), low - -4 F (-20 C);
15w-40, 15w-50 – the same;
20w-20, 20w-40, 20w-50 – high – upper +104 F (+40 C), low +14 F (-10 C);

As you can see, 10w-30 is listed as recommended viscosity.

Hope this table will help you to choose correct viscosity for your climate zone.

 

Except that I would not recommend 10-40 or 10-50, or any oil that that large of viscosity range. You have to put alot of viscosity modifiers to get the oil to flow like a 10 and a 40 or whatever.