rear diff oil how it reacts to handling?

[hypersonic77]

hi what does changing rear diff oil to thicker or thinner on touring car do to handling? thanks

[reg]

Not gospel so am happy to be put right 😊but
Thicker oil will give you more on power steering with a bit of understeer on entry off power,
Thin oil will give you better initial turn in but push more on power,
Usually higher the grip the thicker oil,lower the grip the thinner,its all personal though what you find suits your driving style as to what you start with 👍🏼