Help me! Engine oil problem!!

Robert_Nash

There are threads on this and other sites explaining why an ester based oil it needed for the 3.7; it would probably be a good idea for you (and everyone else) to look them up. The reason the oil is needed has to do with the softness of the metals in this engine and the bonding properties of the ester based oil....in other words, it isn't simply because Nissan sells the oil.

__________________
Robert
-My Basset Hound Is Smarter Than Your Honor Student and Barack Obama -

Old Chuck

I have read numerous posts here and on bobistheoilguy.com however, there are not any tests I have read that compares Nissan ester with other top group IV or V synthetics. As I said, it may be the best but would like to see long term wear tests which, it is too early to assess. I understand the logic about the bonding of ester with the coatings in the parts but not sure if any other top rated Group IV or higher would do as well. There are many different ways to skin a cat and just looking at one factor may be short sighted. I agree with the logic that Nissan uses but just not convinced that something else might not do as well or better. I guess I would like to see the ester compared with other oils long term however, in the meantime, it may seem prudent to use the ester.