i have a 96 max with 120,000 miles on it and i have been puting regular oil in it. Since i only use the best products on my car im contemplating switching to synthetic oil. But some say you should stick with whatever you started with and that even though synthetic is better the switch is no good for the car.

 

If you have the $$$ for the more expensive oil then switch. It is better in every way except $$$$.

-RMB

 

If you've used regular oil with no problems for 120,000 miles don't switch now, it won't do you any good unless you go to extended drain intervals.

 

way too late to switch now...don't think you'll get any benefits at this stage except longer interval between changes.

 

From what I have heard it's usually a bad idea to switch over on a car with that many miles on it. I've heard stories of gaskets going bad and things starting to leak after people switched over on higher milage engines. I don't know if they're true or not, but doesn't really seem worth the risk to me.

 

what if you have a max thats about to hit 100,000 and u have been using reguler oil, but just started moding it and racing it...switch to sin or stay with reguler oil? oh yeah and that goes for the tranny too...

-ChRi§

 

http://forums.maxima.org/showthread.php?threadid=100060

 

i have a 90' max with 171,000 on it and about 6-7,000 miles ago i put mobile one fully synthetic race oil in my tranny and ive had nothing but better performance