Yes, you can use that grade. The owner's manual shows that various weights are acceptable but the preferred weight covers most temperature ranges.
I've used Red Line MT-90 in the past which is a 75W-90 gear oil. When it came time to change it, I switched to Red Line MTL which is 75W-80 and the grade Suzuki recommends for the Kizashi's manual transmission. In my opinion, they are rather similar with the MTL being slightly easier to shift through and better for very cold winter mornings.
If you already have 75W-90 or it's easier for you to obtain, you can use it without issue. However, I think 75W-80 would be better overall, especially when the gearbox is cold in the winter.
Anything related to the Kizashi can go here, but please look at the other headings first. Your topic may fit better under something else.
LPSISRL wrote:I was thinking, "What are you guys talking about? That's gear oil."
Then I remembered that Kuro has a stick.
Yup plus MT typically means Manual Transmission in automotive forums and the like so I knew from the OP's first post he had a manual.
2011 Suzuki Kizashi Sport GTS 6MT (Black)