I service my vehicles at 1 year or 5k miles using, in the past, SuperTech Synthetic, and now, SuperTech Blend. Your engine is going 5 times further on a quart of oil than manufacturers used to recommend (1 quart for every 1k miles).
I'm not on the 10k oil change interval mind, yet.
EDIT: I use factory filters.
I'm not on the 10k oil change interval mind, yet.
EDIT: I use factory filters.