Mikey, 89 is fine. This isn't a high compression engine, so really no reason to go with premium. And with gas prices now shooting up well above $2.ridiculous a gallon, it's about all I can afford any more. My Passat engine is much more high performance (turbo'd), and even though the manual says only premium, it works just fine on 89, and still get 31mpg on the highway, same as with 92.
