2012 Chevy Cruze 1.4T - Amsoil ASL 5w30 - 1 yr /13k miles

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13,000 miles on my first run of Amsoil signature series ASL 5w30 in my trifecta tuned cruze 1.4T, I did have a can of liqui moly motor oil saver in this fill, which worked great for my small seep and explains part of the viscosity deviation that I didn't mention to the lab . Ran pretty hard with lots of idle time for a full year, avg mpg over OCI was 21.7 mpg
 

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For severe service over 1 year, it did okay, but IMO you stretched it too far - TBN is shot, visc has increased beyond what an additive would do, and metals are relatively high.

Also, you have some coolant in your oil, you probably have the water pump/thermostat issue these engines have.

These 1.4 turbo engines don’t do very well on extended drains, and why anyone would do an extended drain on a high strung turbo is beyond me.

Im assuming by how hard you are on the car you don’t really care about it…shame, it seems like a nice little car!
 
Get some Amsoil engine flush and clean the engine. Filler back up with the same oil/filter combination only this time keep the useless motor saver out of the engine and you'll be just fine.
 
It was my worst case scenario UOA, I am going to stick with Amsoil but probably back off the interval some, probably a nice and round 10k miles
 
Amsoil has very advanced chemistry and additive packages not all listed on a UOA that goes beyond things like Calcium, Boron etc., I'd stop messing with it using your oil additive because it could be giving you less than desirable results and contradicting what the oil was designed to do. At the very least at least consider a run without any additive and I would try their flush product before your next fill to clean up the engine. I've used it with excellent results.
 
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