Can You Mix 75W140 And 85W140 – ? Understanding Gear Oil
Mixing different gear oil viscosities like 75w140 and 85w140 is generally not recommended by manufacturers due to potential compromises in lubrication, additive performance, and component protection. While a small amount might not cause immediate catastrophic failure in an emergency, it’s best to use the exact fluid specified for your vehicle’s differential or transfer case to…