Benefits of VI Improver Selection on Passenger Car Fuel Economy Part 2

Transcription

1 Benefits of VI Improver Selection on Passenger Car Fuel Economy Part 2 May 16, 2016 Las Vegas, NV Don Smolenski, Thorsten Bartels, Jackie Liu, Michael Seemann, Joan Souchik

2 Outline Introduction Oils Tested Test details, results Engine dynamometer Chassis dynamometer Summary Conclusions

3 Introduction Lubricants are cost effective means to improve fuel economy VI Improvers can provide a significant benefit Fuel economy improvement extremely important to OEMs - and progressively more costly! Fuel economy is defined by appropriate chassis dynamometer test: US FTP Europe NEDC, WLTC Japan JC08 Test precision is extremely important!

4 EPA Minimum Corporate Average Fuel Economy Requirements Extremely ambitious fuel economy improvement is mandated 54.5 BY 2025 mpg Year

5 Benefit of Optimized Viscosity Profile Viscosity Area of fuel economy improvement Optimized Conventional Temperature. C

6 SAE 5W-30 Oils Tested Physical Properties Oils Unit Reference Viscosity Index Improver Conv. 1 Conv. 2 Adv. 1 Adv. 2 KV40C mm 2 /s KV100C mm 2 /s VI HTHS 80 C mpas HTHS 100 C mpas HTHS 150 C mpas

7 Engine Dyno Testing

8 Fuel Economy - Engine Dyno Testing German Technical University Well equipped engine dynamometers with fuel scale and emissions measurements capabilities Ability to run FTP75 city, NEDC, WLTC, JC08 cycles Opel 2.0L turbo engine; calibration for Insignia with manual transmission Excellent repeatability, 3 runs each oil, each cycle

9 Fuel Economy in FTP75 City Cycle Comparison of Different VIIs Fuel Economy Improvement over Reference 2.00% 1.80% 1.60% 1.40% 1.20% 1.00% 0.80% 0.60% 0.40% 0.20% 0.00% max min avg Conv. Oil 2 Adv. Oil 1 Adv. Oil 2 Advanced Oil 2: 0.97% improvement in FE over Reference

10 Fuel Economy in NEDC Cycle Comparison of Different VIIs Fuel Economy Improvement over Reference 2.00% 1.75% 1.50% 1.25% 1.00% 0.75% 0.50% 0.25% 0.00% -0.25% -0.50% max min avg Conv. Oil 2 Adv. Oil 1 Adv. Oil 2 Adv. Oil 2:1.54% improvement over Reference

11 Chassis Dyno Testing

12 Chassis Dyno Test Illustrate benefit of proper VI improver selection Validate engine dyno data on chassis dyno FE gold standard - chassis Midwest US lab

13 Test Protocol Chassis Dyno Buick Regal (American equivalent to Insignia) Turbo (same engine at German engine dyno, but calibrated for US emissions), with an automatic transmission Chassis dynamometer Same oils and FE cycles as engine dyno, except: dropped JC08 replaced WLTC with FTP Highway

14 FTP City Cycle Results FE Change Over Average Reference 3.60% 3.00% 2.40% 1.80% 1.20% 0.60% 0.00% -0.60% -1.20% Conv. Reference Advanced Oil 2 Advanced Oil 2: 1.23% improvement over reference

15 FTP City Cycle Oils Are Statistically Different One Factor Fuel Economy FE1 emissions % confidence level 21.4 (8350/1) (8302/2) Reference Oil Advanced Oil 2

16 NEDC Results 1.30% FE Change over Average Reference 1.10% 0.90% 0.70% 0.50% 0.30% 0.10% -0.10% -0.30% -0.50% Conventional Ref. Advanced Oil 2 Advanced Oil 2: 0.87% improvement over Reference

17 NEDC Oils are Statistically Different One Factor 22.9 Fuel Economy FE % confidence level 22.4 (8350/1) (8302/2) Reference Oil Advanced Oil 2

18 Results FTP Highway High variability in reference oil results Slight improvement observed with Advanced Oil 2 Work is ongoing

19 Fuel Economy and Viscometrics Fuel economy results from engine and chassis tests were plotted against several key viscometric properties Fuel economy trends as expected with viscometrics Optimized viscosity profile better fuel economy

20 Fuel Economy and Viscometrics KV40C HTHS 150 C KV100C HTHS 100 C Conventional HTHS 80 C Advanced VII FE Change over average Reference 3.60% 3.00% 2.40% 1.80% 1.20% 0.60% 0.00% -0.60% -1.20%

21 Summary NEDC and FTP City cycle FE tests were conducted with good precision on meticulously controlled engine and chassis dynamometers Fuel Economy improvement measured in NEDC and FTP City cycles show similar ranking of oils Oils with optimized viscometrics demonstrate a significant fuel economy advantage over conventional formulations

22 Conclusion Optimized VI improver selection can provide significant fuel economy improvement

23 Questions?? Dankeschön Merci Gracias Xie Xie 谢谢 Thank you