i changed out my differential fluid and replaced it with lucas heavy duty oil stabilizer. now, the bottle says that you can use 50 to 100% in differentials with no need for a lsd additive. so far i'm not having any noise or issues but yet i am still weary and im wondering if anyone else has done this. the temp keeps dropping here in the north east and want to know if i'll be alright for the winter (cause i dont have a garage to change it out in)

 

Yes I have and I live in upstate NY up by canada, it seems to be fine each year, done it for 2yrs now.(about 50%)