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Looks great. I have always had great luck with Amsoil SS on my previous vehicles.

Nice UOA, healthy motor.

Originally Posted by RayCJ Originally Posted by oilnoob32 I also wanted to mention after reading around this board some more, that the car does have an aftermarket oil cooler setup utilizing a Setrab unit. Are these units known to leech copper, or is that specific oil coolers? The visible...

I also wanted to mention after reading around this board some more, that the car does have an aftermarket oil cooler setup utilizing a Setrab unit. Are these units known to leech copper, or is that specific oil coolers? The visible "specks" would not be from the oil cooler, though, correct?

Originally Posted by Macsignals Originally Posted by oilnoob32 Noob question I guess - but why is the copper universal average so high for this motor? It's the oil cooler. Though now I want to find a UOA of a LV3 Ecotec3 4.3L V6 to compare since they don't have oil coolers unless you add...

Noob question I guess - but why is the copper universal average so high for this motor?

Originally Posted by Env1ous Very envious of your car man!! I love the CTS vs with a passion! Thanks! I really do love the car, and although it is not a daily driver and I don't drive it often, I have really missed getting behind the wheel. It took over 3 weeks between shipping and turn around...

All good points, and thanks for the insight from each of you. I thought I would run this Amsoil Signature 10w-30 for a short time, and then run a 10w-40 with the heat down here in TX and for this configuration. I will have to do a little more digging on properties of potential oils. Also a...

Originally Posted by RayCJ The copper level is very normal for a new engine. My new Mazda had elevated copper levels higher than yours after the first oil change. It will take a couple more oil changes before it gets down to trace amounts. Another member here had a broken-in engine that needed...

I noticed a slight drop in hot idle OP (low 20s vs high 20s) so I changed the oil in the car. It was a little low but nothing crazy, also. I recently bought this car a few months ago, and I really haven't even had time to drive it more than maybe 10 times. Anyways, I thought I saw some sheen to...