Recently I changed the oil in my vehicle's rear differential. The manual recommended the use of a "Hypoid" oil, but the guy at the auto parts store suggested a "Limslip" oil instead. I went along with his recommendation since he probably knows more about vehicle maintenance than I do and because the viscosity rating of the "Limslip" oil matched what the manual called for anyways.
Since changing the oil I haven't noticed any issues with my vehicle, and I made sure to take it out for some aggressive driving immediately following the procedure to verify that all was well.
But still I wonder, what is the actual difference between the "Hypoid" oil and the "Limslip" oil? Did I commit some terrible error by using one instead of the other? Is my differential going to explode one day because of it?