My vehicle is Mazda3 1.6AT 2012, china(4AT, FN4A-EL transmission same as Ford's 4F27E ),passed 60000Km,need to be change transmission fluid,oemd is Idemitsu TianJin china,with the 100cSt 7.3 and viscosity 196,but i want to change it to full-synthetic ,there are two choice, valvoline maxlife with the 100cSt 5.91 and kendall versatrans LV with the 100cSt 5.9,both of them has low viscosity and both of them not get Mazda approval( ATF M-V) ,so question is that if them fit for my car for warrried about the low viscosity , whom of them is the better full-synthetic, thank you!