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Old 01-14-2020, 02:10 PM   #8
Scooby Newbie
Member#: 461015
Join Date: Jan 2017
Location: Littleton, CO
2017 WRX


I run about half M1 ESP 5W-30 and half M1 0W-40 and lose less than half a quart in 5k miles. Muffler deletes should make no difference but I've had them on the car for a year now.
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