1st...is Mobil 1 0w-30 okay?
also,
do i need to use flush to prep the engine.
any recommendations?

 

Other then draining out the old and replacing it with
new synthetic everything should be fine.

There are synthetic blends of half & half so I would not worry about the change.

 

Don't use 0W30. Stick with 5W30. Don't use heavier grade of oil on a newer car.

 

Be careful about the blends. Some of them are only 5% synthetic. Make sure it shows a high percentage of synthetic. I'm now using Mobil 1. Since I change my own oil, it's roughly the same as paying someone to change it with dino oil. Anyone know where to get Mobil 1 cheap?

 

dead dino juice. Blends are a waste of time IMHO. Remember if you use Mobil 1, it's not designed for extended drain intervals so don't run it any longer than you would a dino oil.

 

every 5-6K miles as opposed to 3K with the dino oil. I heard that you don't get the benefit of synthetic oil if you change it out every 3K miles.

 

Stick with 5W-30...no need to risk the VQ unless ambient/environmental conditions insist....

As for the engine flush/synthetic/etc. visit this post (which, BTW, is one of Jeff92se's favorite posts)

<A HREF="https://maxima.org/forums/showthread.phtml?threadid=398">https://maxima.org/forums/showthread.phtml?threadid=398</A>