Qualube Endurol 15W40

Notes

• a. Sulphated ash level must not exceed 1.0% or 0.8% according to fuel sulphur content and oil quality. Detroit Diesel imposes additional requirements on oil additive content, sulphated ash and alkalinity according to application, engine type and fuel sulphur content
• b. For continuous high temperature operation (94°C coolant outlet) SAE 50 is recommended for 53, 71 and 92 Series engines. At ambient temperatures below freezing where starting aids are not available, or where temperature is down to -18°C to -32°C the use of 15W-40 or monograde SAE 30 will assist starting, must be high temperature/high shear (ASTM D4741 viscosity 3.70 cP min.). SAE 40 must replace these oils when conditions permit. DO NOT USE multigrade or SAE 30 under any circumstances in MARINE applications
• c. Do not use MIL-L-2104 type oils in 2-stroke engines unless API CF-2 licensed. These oils must be latest revision

1. See Detroit Diesel Corporation Bulletin 7SE270 9706, 'Lubricating Oil, Fuel Oil and Filter Recommendations', for additional information on alternative lubricant requirements (DDC/MTU Series 2000/4000 only refer to Engine Service Fluid and Filter Requirements Publication 7SE273 9903). Synthetic oils may be used if API licensed and meet Detroit Diesel requirements. Must not contain VI improvers for 2-stroke engines
2. Fuel sulphur content above 0.5% may require higher alkalinity oils and reduced drain intervals. Low zinc, high TBN Marine/Industrial lubricants are recommended for marine and railroad applications of Series 149 and other 2-stroke engines where sulphur content exceeds 0.5%
3. Natural gas operation: See Bulletin 7SE272 for details.