The best M/T gear oils available in market are Kixx and Mobil. Remember that kixx gl4 is 75w-85 but city suggests 75w-90 to be used, but it is not a major difference, in fact it is not a difference and will provide you better fuel economy. Same is the case with Mobil which is 80w-90, no major difference but it will not give economy which 75w-85 will. Never use Zic Oils if u have other options because of 2 reasons. 1: it is now assembled in Pakistan since 2015 . 2 : Max amount of fake oils are packed in box or packing of Zic