What are these lines on this Gates' serpentine belt? I noticed it as I was changing the washing fluid. It doesn't squeak and it's only 8 months old. 2010 Ford Escape :
Gates Micro-V Serpentine Belt 7 Rib 54-7/16 Inch K070539 | O'Reilly Au
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Buy Gates Performance Micro-V Serpentine Belt 10 Ribs 107.87in Length - K101078RPM for 103.62 at Armageddon Turbo & Performance