Yeah he just put it into work service 2 months ago and slapped 10,000 miles on since that point! He had already spent way too much money on quick lube oil changes so I got him hooked up with a flush, SSO and an EAO. As far as the sodium goes I have never seen a VOA for this oil in bulk form, but I figured with the EL coolant I would have saw potassium right up there too if it were a leak.