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well thats is another problem.. cheap oil sheers and sheers bad..
I have had sheer test run on Mobil 1 5w30 after 1500 miles in a mitsubishi evo 9 the oil read at 0w20
the customer then switched to ELF 5w40 and at 3500 miles the sheer stayed the same 5w40
I had the same company do the same test.
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