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Discussion Starter · #1 ·
Im new here and I just got my is250 2 weeks ago and have 650 miles on it. So far Ive been driving like a granny and breaking it in properly. I just read up on the ECT power mode and was wondering if I left it on all the time, would there be any long term problems? I know the mode holds lower gears longer and rev higher, would this be detrimental to the motor in the long run?
 
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