I was using Syntec for years, until i bought an Audi. Then realized how weak it can be. I then tried Mobil 1 and got better results. Now in my Currents vehicles i have upgraded to Amsoil. This is after many others (MOTUL, Redline, Royal purple) All pricey but far superior in engine performance.
The pricey ones are harder to find, Amsoil is at Canadian Tire and most other stores, So its a easy choice for me.
To answer your specific question. Mobil 1.
I would spend the extra 3 bucks a ltr and get Amsoil or Redline if you can find it. Our Nissans love it.