Improve the performance of your engine with Royal Purple Oil, a high-performance synthetic lubricant that offers improved performance and… | Instagram
![Royal Purple on X: "#RoyalPurple Max-Gear is high performance gear oil designed to provide maximum protection to heavily loaded gears & increase power throughput through the drive train. See what #LoyaltoRoyal customers Royal Purple on X: "#RoyalPurple Max-Gear is high performance gear oil designed to provide maximum protection to heavily loaded gears & increase power throughput through the drive train. See what #LoyaltoRoyal customers](https://pbs.twimg.com/media/FAe5CE4WEAMgvoW.jpg)
Royal Purple on X: "#RoyalPurple Max-Gear is high performance gear oil designed to provide maximum protection to heavily loaded gears & increase power throughput through the drive train. See what #LoyaltoRoyal customers
![2 qts 75w-90, 1/2 qt 75w-140 by mistake. Do I have to drain the whole thing and start over? : r/MechanicAdvice 2 qts 75w-90, 1/2 qt 75w-140 by mistake. Do I have to drain the whole thing and start over? : r/MechanicAdvice](https://preview.redd.it/2-qts-75w-90-1-2-qt-75w-140-by-mistake-do-i-have-to-drain-v0-wgq8g3ftrwea1.jpg?auto=webp&s=2bfcd697ab1a5412c178ecaba12b58b6d7aa74f3)
2 qts 75w-90, 1/2 qt 75w-140 by mistake. Do I have to drain the whole thing and start over? : r/MechanicAdvice
![Royal Purple 01301 Max Gear 75W-140 High Performance Synthetic Automotive Gear Oil, 1 Quart Bottle : Amazon.ca: Automotive Royal Purple 01301 Max Gear 75W-140 High Performance Synthetic Automotive Gear Oil, 1 Quart Bottle : Amazon.ca: Automotive](https://m.media-amazon.com/images/I/71WAi-stRTL._AC_UF1000,1000_QL80_.jpg)