API CD | Automotive | Engine Oil | Rail | SAE 40 | Shell Caprinus HPD 40 – Railroad Diesel Engine Oil
API CF | Automotive | Engine Oil | Rail | SAE 20W-40 | SAE 40 | Shell Caprinus XR – Railroad Diesel Engine Oil
API GL-4 | Automotive | Gear Fluid | SAE 75W-90 | SAE J306 | Shell | Synthetic | Transmission Fluid Shell Getriebeöl EP – Synthetic High Quality Gearbox Oil
API GL-5 | Automotive | Gear Fluid | SAE 85W-140 | SAE J306 | Shell | Transmission Fluid Pennzoil Long-Life Gearplus – Quality Axle Oils
API GL-5 | Automotive | Axle Oil | Gear Fluid | SAE 140 | SAE 80W | SAE 80w-140 | SAE 80W-90 | SAE 85W-140 | SAE 90 | SAE J306 | Shell | Transmission Fluid Shell Spirax A – High Quality Axle Oils
API GL-5 | Automotive | Axle Oil | Gear Fluid | SAE 80W-90 | SAE 85W-140 | SAE 90 | Shell | Transmission Fluid Shell Spirax A LS – High Quality Heavy Duty Axle Oils for Limited Slip Differentials
API GL-5 | API MT-1 | Automotive | Axle Oil | Gear Fluid | SAE 75W-140 | SAE 75W-90 | SAE J2360 | SAE J306 | Shell | Synthetic | Transmission Fluid Shell Spirax ASX – High Performance, Fuel Economy, Synthetic Transmission and Axle Oil
API GL-5 | Automotive | Axle Oil | Gear Fluid | SAE 80W-90 | SAE 85W-140 | SAE J306 | Shell | Transmission Fluid Shell Spirax AX – High Performance Long Life Axle Oils
