I have a 99 Saab 9-3 SE manual 5 speed 4 door Hatchback. If I do an oil change using Redline which Redline do I want to use? MTL 75W80? Or MTL 75W90? I researched a little more and found that the MT 90 is what is recommended, is this correct?
Thank you for your help.
My manual just says Saab Synthetic manual gearbox oil 400 108 247. I would think that the wider range would be best since my guess is that Arizona gets pretty hot during the summer.
Looking at the specs, it seems Castrol Syntrans FE 75W is close but not MTF0063 approved
I used Dexron VI. It was the spec for a while and seems to work fine.
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