in my D21 with 182k, i tried the high milage GTX. For the most part im with the camp that says stick to your oil that works. Well i dunno why but i tried it anyway. Made it alot noisier. No leaks, but it sounded bad afterwards. So i put 10W40 GTX standard back in it and its 80% back to sounding like normal.
oh yeah first post. Hey everyone.