Before becoming exposed to this site and the tons of very useful information, I just used Mobil 1 5w-30 in my autos and never thought much more about the subject. Now I get a headache when I contemplate the subject about which oil to use and why. Perhaps you can help me with some recommendations (please).
I have 3 cars I do oil changes for: a '99 & '03 Maxima with OHC engines and a '03 Chevy Tahoe V-8. All recommend 5-30w but 10w-30 can be used above 0 degrees. I live in Memphis and it get real hot (above 95 continuously) in the summer. My concerns with 5w-30 or 10w-30 Mobil 1 is that it is pretty close to a high 20W oil to begin with and that Mobil 1 doesn't appear to have the detergency I once thought it had (based on personal observation after a one time change to Amsoil and how black the oil became very quickly). Amsoil 5w-30 appears to be a better choice at least in the summer perhaps. Or I could add some 15w-50 Mobil 1 to their 5w/10w-30 during the summer(?) or just forget the whole issue and continue to run Mobil 1 5w-30.
What do you guys recommend as the best oil or mixture of oils for the winter and summer? I drive each vehicle 6000 miles before changing the oil (presume I will continue to do this) and do not really care about the small cost difference in these oils. I know all 'will do' but which is the 'best'?
Thanks in advance...
I have 3 cars I do oil changes for: a '99 & '03 Maxima with OHC engines and a '03 Chevy Tahoe V-8. All recommend 5-30w but 10w-30 can be used above 0 degrees. I live in Memphis and it get real hot (above 95 continuously) in the summer. My concerns with 5w-30 or 10w-30 Mobil 1 is that it is pretty close to a high 20W oil to begin with and that Mobil 1 doesn't appear to have the detergency I once thought it had (based on personal observation after a one time change to Amsoil and how black the oil became very quickly). Amsoil 5w-30 appears to be a better choice at least in the summer perhaps. Or I could add some 15w-50 Mobil 1 to their 5w/10w-30 during the summer(?) or just forget the whole issue and continue to run Mobil 1 5w-30.
What do you guys recommend as the best oil or mixture of oils for the winter and summer? I drive each vehicle 6000 miles before changing the oil (presume I will continue to do this) and do not really care about the small cost difference in these oils. I know all 'will do' but which is the 'best'?
Thanks in advance...