Thanks to all of you guys. I'm more comfortable with 75W90 anyway and I'm using this one in my 5 series and I'll probably use it in X5.
LIQUI MOLY - Motor Oils, Additives, Car Care - Products - Fully Synthetic Gear Oil

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2010 BMW M6 * Black Saphire Metallic * Full Black Merino Leather
2019 BMW X3 M40i * Alpine White * Mocha Leather