Mobil1 Synthetic 10w30

 

I have castrol syntec in my car now, its not synthetic but it costs the same as synthetic? Is castrol GTX full synthetic?

 

is it alright if I put in that mobil 1 0w30 in my G? I live in florida and the temp tends to shift from hot to hot and humid to cool and to freezing my *** off cold.

 

Florida gets cold?

 

I just started running AMSOIL I love it my neighbor with a Subaru STI recommended it. I was anti synthetic but after seeing how hard he runs his car, its pro tuned and his oil was sent to an analysis lab to have it checked. Everything came back positive on engine wear as in tip top condition so I finally took the plunge and switched to AMSOIL.

 

Mobil 1 haven't had any trouble with it and since they brought up a new mobil 1 type for the gtr nissan is now putting that new mobil 1 on all their performance rides.. And havne't burned anything yet 2900k

 

https://g35driver.com/forums/lounge-...age-g-etc.html

 

i have an 04 5mt g coupe with 107m on it, i drive around 80-90 miles a day everyday so i am wondering what oil should i be using to handle my daily abuse. i currently use castrol gtx and was planning on going with royal purple on my next service, also what grade? thanks

 

^^ See post #50.