AMSOIL signature series 0w-20 5.7k mi; 2025 Chevrolet Malibu 1.5L 6k mi

Joined
Jun 3, 2005
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699
Location
Oregon
first oil change done at 300 miles. this is the second oil change. I also changed the oil filter halfway thru this interval

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Break-in wear and much more fuel dilution than what is showing up in this report. The fuel could also be impacting the wear rate, but I'd attribute most of the Fe to break-in and maybe fuel dilution. Should come down.
 
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Iron seems pretty high, even considering that this is only the second UOA. Copper and tin seem a bit high, maybe from bronze turbo bearings, which would also produce iron from shaft wear. This might all be normal break-in wear. I'd try to find some other low mileage UOAs from this engine to compare it to.

The oil could have gone longer, but I'd stick to 6k miles for now, then do another UOA.
 
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