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Performance Benefits with Synthetics

Performance Benefits with Synthetics. Improved energy efficiency Wider operating temperature range Increased design ratings Reduced maintenance costs Better reliability, safer operation Enhanced environmental performance. Performance Benefits with Synthetics.

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Performance Benefits with Synthetics

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  1. Performance Benefits with Synthetics • Improved energy efficiency • Wider operating temperature range • Increased design ratings • Reduced maintenance costs • Better reliability, safer operation • Enhanced environmental performance

  2. Performance Benefits with Synthetics • Internal Combustion Engines • Lower viscosity with low volatility • Improved oxidation stability, less viscosity increase with oil aging • Better short trip fuel economy due to lower viscosity at low temperatures • Reduced contact losses due to low traction and lower pressure-viscosity coefficient • Gears • Lower mesh losses due to reduced traction • Lower viscous losses at low temperature 1. Improved Energy Efficiency

  3. 30 Noack Polydecene Volatility Mineral (% Loss at 25 250C, 1 hr) 22% 20 15 13% 10 5 0 3 4 5 6 7 8 9 10 11 Kinematic Viscosity at 100C, cS Lower Viscosity with Low Volatility • Polydecene base stocks have lower volatility than mineral oils

  4. Traction Force Mineral Oil Polydecene Slide-Roll Ratio +S -S Area between curves is energy saved with low traction synthetic lubes Range of Slide-Roll Ratio in Spur Gear Gear Mesh Loss Reduction with Low Traction Synthetics Polydecene-based synthetics can improve efficiency of spur/helical gears by 0.5%/mesh

  5. -80 -40 0 200 400 600 Fahrenheit Mineral Oils Polydecenes Alkyl Aromatics Diesters Polyol Esters Polyglycols Phosphate esters Celsius -60 -40 -20 100 200 300 Limited by Starting Torque Continuous Service Intermittent Service Performance Benefits with Synthetics 2. Wider Operating Temperature Range • Better oxidative stability • Lower pour point, no wax • Less volatile • Higher VI

  6. Pour Point°C 0 Mineral oil -10 -20 -30 -40 -50 Polydecene -60 -70 -80 2 4 6 8 10 20 30 40 50 KV at 100°C, cST Synthetics have Lower Pour Points

  7. Viscosity Mineral Oil High VI Equivalentviscosity ISO VG Increased protection 40 Temperature, °C Increased Protection from High VI • High VI gives less viscosity loss as temperature increases

  8. Performance Benefits with Synthetics • Higher power, same life • Same power, longer life • Smaller unit, same power, same life 3. Increased Design Ratings Enclosed - Low traction, higher loads before Gearboxes scuffing/scoring Traction Drives - Synthetic high traction fluids are an enabling technology Engines - Higher oxidative stability, less deposits, lower volatility Slow speed - High shear stable viscosity, still gears/bearings fluid at low temperature

  9. Worm Gear Efficiency % 100 Lower Traction 90 80 Polydecene Mineral Oil 70 60 0 10 20 30 40 50 Reduction Ratio Traction and Worm Gear Efficiency • In worm gears, polydecene-based synthetics give 2-10% energy savings and permit increased thermal ratings

  10. 30 90C Traction Fluids 25 PAG 1 Naphthenic 20 IN OUT Paraffinic Maximum Shear Stress, kpsi 15 PAO SuperSyn 10 PAG 2 5 0 0 100 200 300 400 500 Peak Contact Pressure, kpsi Traction Drives and Traction Fluids Traction Drives need high shear strength fluids

  11. Performance Benefits with Synthetics • Longer oil life • Extended drain intervals • Lower disposal costs • Longer component life • Reduced wear • Reduced pitting • Improved cleanliness • No seasonal oil changes needed • Lower oil consumption • Less make-up needed 4. Reduced Maintenance Costs

  12. Performance Benefits with Synthetics • Aerospace needs, extreme conditions • Jet engines - high temperatures • Hydraulic systems - low temperatures • Space vehicles • vacuum • temperature extremes • inaccessible • Automobile racing • High loads and temperatures • Safety margin - coolant loss, low oil level • Fire-resistant hydraulic fluids 5. Better Reliability, Safer Operation

  13. Performance Benefits with Synthetics • Biodegradable base stocks • wider temperature range • more predictable performance • Lubricants for refrigeration systems which use non-ozone depleting refrigerants • Reduced volume of waste oil through extended drain capability • Potential for recovery and recycle 6. Enhanced environmental performance

  14. Conclusions • Mineral base stocks are average performers for many applications but not optimum. • Synthesis matches molecules plus the right additives with applications. • Synthetics must show an economic benefit or do what a mineral oil can not. • Economic benefits come from • Energy efficiency • Wider temperature range • Increased design ratings • Reduced maintenance • Reliability and safety. • Environmental performance. • Future developments will come from studies of structure-property relationships.

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