You realize that SM oil is formulated to provide lubrication up to a constant 300*F. Why do you think the car goes into limp mode at 280*F? Getting too close to 300*F so they program the ecu to force a cool down period to save your engine from potential damage. Oil worries at temps of 260*F are long gone with newer oil specs. 220*F? That's relatively cool for cars being built now.
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"America.... still builds rockets!"
Vette: 355 cid, 400 rwhp
'13 CTS-V Coupe: 6.2L LSA, 556HP
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