I need to do a drain/fill on my 04 Maxima and I was thinking of switching to a synthetic ATF like Mobil 1. I know Nissan is very adament on using nissan matic K only for my application. According to the Mobil 1 website it is a replacement ATF for my application(matic K) and it exceeds the JASO 1-A performance requirements. Is this safe to use? Just don't want transmission problems down the line.