I always recommend using the same brand so you learn the mileage intervals for the specific brand you use. Not that they will not differ, but I imagine each from one brand will likely last more similarly to each other than those you from brand jumping. With that said, I still use whichever is supplying VW. I've seen posts recommending INA, but I have no personal reviews for that brand. I recall reading one topic/thread on the INA brand and someone was saying INA supplies VW. They posted a pic of the VW follower case and sticker....and INA was on the sticker. But I couldn't find the post or pic just now.
