I just got a 2005 Tucson. Wanting to change oil Is full synthetic or synthetic blend recommend?

 

There are all kinds of mixed views regarding using synthetic on engines with hi mileage that have never used synthetic before.

I use synthetic in all equipment . There was some truth in , leaks will show up where it never leaked before. Some new vehicles now come with full synthetic in them.

Your owner's manual should serve as a good guide, consider what it says.