crazyal
Super Member
Just remove the fill plug and either dip your finger into the oil or something else that's clean if it's too low, and give it a smell. Gear oil has a very unique smell to it. Having one type of oil is always nicer than keeping two different types. Up north I would lean towards the super UDT2 for being better in the real cold conditions we see. It's not just the gears and bearings but also the seal material that benefits.