I've read previous posts where advice is presented to use dino with AutoRx if there is a leak problem and it is otherwise ok to use synthetic oil (but run it to 750 miles vs 500 miles).
I have a '99 Maxima with 60,000 miles that has been run on M1 5w-30 its whole life. Switched to Amsoil 5w-30 and the oil became dark very quick. With M1, the oil never really became dark even when changed at 5K intervals. I'm thinking the Amsoil is doing some cleaning the M1 didn't. So, I want to run AutoRx to perform a thorough cleaning. What is the BEST kind of oil(dino ro synthetic) to use do this? Should I drain the Amsoil, add dino and run the AutoRx for 500 miles or just change the filter, put the AutoRx into the Amsoil and continue to run for 750 miles before changing?
I'm not concerned with cost in this instance nor do I have any leaks. But, I do not really understand this information that synthetic has some additives that "compete" with the esters in AutoRx for space on the metal. Would it not be better to use dino in all situations if indeed there is some sort of chemistry competition going on?
Also, nothwithstanding oil leak issues which I don't have, does it make ANY difference in whether you use dino or synthetic as the follow-up oil after draining the first run of AutoRx? Is one better for the seals than another even if they don't leak to begin with?
I have a '99 Maxima with 60,000 miles that has been run on M1 5w-30 its whole life. Switched to Amsoil 5w-30 and the oil became dark very quick. With M1, the oil never really became dark even when changed at 5K intervals. I'm thinking the Amsoil is doing some cleaning the M1 didn't. So, I want to run AutoRx to perform a thorough cleaning. What is the BEST kind of oil(dino ro synthetic) to use do this? Should I drain the Amsoil, add dino and run the AutoRx for 500 miles or just change the filter, put the AutoRx into the Amsoil and continue to run for 750 miles before changing?
I'm not concerned with cost in this instance nor do I have any leaks. But, I do not really understand this information that synthetic has some additives that "compete" with the esters in AutoRx for space on the metal. Would it not be better to use dino in all situations if indeed there is some sort of chemistry competition going on?
Also, nothwithstanding oil leak issues which I don't have, does it make ANY difference in whether you use dino or synthetic as the follow-up oil after draining the first run of AutoRx? Is one better for the seals than another even if they don't leak to begin with?