12-17-2021, 09:59 AM | #23 | |
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Even if BP Castrol makes something extra special for BMW I highly doubt there would be such a huge difference between 0W-30 and 5W-30 in elements (Molybdenum 75 VS 1, Titanium 17 vs 0, Calcium 976 vs 2654, Magnesium 836 vs 17) and flashpoint. The best way to verify this would be another sample without the oil brand name. Sadly Blackstone doesn't provide "pour point" result and a graph of the spectroscopic analysis. |
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12-17-2021, 10:51 AM | #24 | ||
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BMW always asks blenders that they currently use to blend specific oil for BMW. You won't find any off the shelf Castrol similar to what they make for BMW. That doesn't mean TPT is better, it just means BMW wants certain specific stuff. Their previous TPT 5W30 LL01 was really stout oil, but had mediocre cold performance. It was almost 10W30 oil. |
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12-17-2021, 02:20 PM | #26 |
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12-21-2021, 01:03 PM | #27 |
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Forgot about FE, it explains everything.
Btw, found a good example of fully synthetic oil, sadly not for US market and fuel: Code:
Name Method Units Aral SuperTronic 0W-40 Density @ 15C, Relative ASTM D4052 g/ml 0.838 Viscosity, Kinematic 100C ASTM D445 mm²/s 12.8 Viscosity, Kinematic 40C ASTM D445 mm²/s 75.7 Viscosity Index ASTM D2270 None 171 Flash Point, PMCC ASTM D93 °C 244 Pour Point ASTM D97 °C max - 60 |
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