hey guys.
I have repeatedly used 10w-40 penzoil in my car but I can no longer source it. I live in tropical queensland, and because I have absolutely no idea about oils, im wondering what I should now put in it. After reading through here, many people seem to be using 5w-30, 10w-60 etc.
Is it ok to change to this? Ive always looked for a 10w-40 blend as someone mentioned it was what nissan recommended for there motors after a couple of years.
I give my car a bit sometimes, and I always allow for proper warm-up.
So with this in mind, Can anyone recommend a decent mobil or castrol etc alternative to the penzoil I used to use?
Should I Just for out the money for motul 300V 10w-40?
Thanks for your help.