Test 2: Tesla model 3 EDU efficiency testing Tests on the Tesla Model 3 EDU shown in Figure 4 demonstrated: • E-fluid formulations based on SpectraSyn™ MaX 3.5 PAO can help improve energy efficiency significantly compared to e-fluids based on Group III or Group III+ base oils.
• Using an EV fluid with higher base oil viscosity had a positive impact on the efficiency in this test
WLTC Range test was conducted under the following conditions: • Calibrated dynamometer. • Traction batteries charged overnight prior to each test run.
• Fan for headwinds during testing.
Bearings wear and fatigue test results The FE8 bearing fatigue and the FZG slow speed wear test results suggest that e-fluid formulations based on SpectraSyn™ MaX 3.5 PAO can help improve wear and durability of mechanical equipment. The results are highlighted in Table 3:
Figure 4: Efficiency testing on a Tesla model 3 EDU
Reference fluid KV100 = 6 cSt Sample 1: SpectraSyn™ MaX 3.5, KV100 = 4.5 cSt Sample 2: Group III, KV100 = 4.5 cSt Sample 3: Group III+, KV100 = 4.5 cSt Sample 4: SpectraSyn™ MaX 3.5 PAO, KV100 = 5.7 cSt, higher VM content
Test 3: VW ID4 Chassis dyno vehicle test Dyno vehicle tests on the VW ID4 Chassis shown in Figure 5 demonstrated: • E-fluid formulations based on SpectraSyn™ MaX 3.5 PAO can help enhance EV powertrain efficiency and extend driving range, compared to Group III or Group III+ based formulations.
• Next generation ultra-low viscosity SpectraSyn™ MaX 3.5 PAO can enhance efficiency even further.
Table 3: Bearing and Gear wear & fatigue tests results
Proven energy efficiency and driving range improvements
EDU and vehicle testing has proven that e-fluid formulations based on SpectraSyn™ MaX 3.5 PAO base stocks can deliver improved efficiency benefits compared to Group III/III+ based formulations.
Results and statistical data also demonstrate reduced energy losses when SpectraSyn™ MaX 3.5 PAO-based formulations are used, which can help extend driving range and reduce oil temperatures.
The impacts of different factors have been identified in the following order: base oil > fluid viscosity > additives.
Figure 5: VW ID4 Chassis dyno vehicle test results
Test 3-14 formulation: SpectraSyn™ MaX 3.5 PAO, KV100 = 4.1 cSt. Test 3-15 formulation: Group III, KV100 = 4.1 cSt. Test 3-18 formulation: Group III+, KV100 = 4.1 cSt. Test 3-23 formulation: SpectraSyn™ MaX 3.5 PAO and 2X (50/50), KV100 = 3.4 cSt.
In industry wear and fatigue testing e-fluid formulations based SpectraSyn™ MaX 3.5 PAO can improve gear and bearing fatigue performance, which can also help increase both durability and service life.
www.exxonmobil.com/basestocks
LUBE MAGAZINE NO.185 FEBRUARY 2025
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