For me, for my usage, option 1, by far.
The tuner's 275F limit is appropriately conservative, presumably assuming 0w20 weight oil. Personally I haven't seen anything to suggest that 275F should be a problem running good synthetic 30-weight.
FWIW I never encountered any factory oil temp cutoff running the same oil temps. I've read that there may be one around 300F?
Quote:
Originally Posted by FR-S2GT86
So in your situation, what do you think would be the better fix out of these two examples?
1) Increase the thermal safety limit so that the ECU can't limit the power output of the engine when the oil reaches the original temperature setpoint,
or
2) Install an oil cooler so that the oil temperature doesn't reach the original thermal limit in the first place.
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