Quote:
Originally Posted by justin_boy
castrol is 518, wouldnt it 536 be better?
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I'm guessing you're comparing apples to oranges. Because Castrol SRF is top shelf. That DOT 4 fluid (ATE?) is probably 536F dry boiling point and likely around 375F wet boiling point. SRF is 590F dry and 518F wet. Big difference...