Amsoil or Catrol GTX Syntec Blend???

[Sams984Runner]

Question for Amsoil Users in Particular!!?

Hi everyone, I read in some threads that warranty is void (for new trucks ofcourse) if they use Amsoil oil due to Amsoil not being (something something) certified. But others say that Amsoil 0w10, etc. is the best oil for their engines. So, as you can see i am confused.
I live in Houston, TX and we mostly warm here or wet. I have always used Castrol GTX Full Synthetic in my last car (96 Maxima) and now in my T4R i'm using GTX Sytec Blend (every 5K miles).
If i use the Amsoil next time around, will that be any good for my engine and will i feel any kind of boost in the performance??

Thanx in advance.

 

[Jacobzky]

you cant go wrong with Amsoil

Amsoil 5W-30 or 0W-30. i use the latter.

you asked "will that be any good for my engine and will i feel any kind of boost in the performance?
IMO, your engine will feel better, runs cooler and have better protection.

 

[<<<<]

Why using Blend? You can get 5 Quart jar of Full Syntetic Mobil-1 for $19.95. You'll get better oil than blend and about same price. But refering to original question, I would use Syntetic Amsoil from your 2 choices.

 

[Indy4Runner]

Amsoil will work well for your truck. So will Castrol and all the others. Any boost in performance that you feel will most likely be psychological. I wouldn't overthink it.