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I was working under the hood and on a whim I pulled the oil filler tube( it unscrews )just to have a peak and see how the top end looked( you can actually see quite a bit through the hole surprisingly ). I was SHOCKED to see the valve train all varnished up( VERY dark! ). I also saw what appeared to be some deposit build up. This is a completely healthy engine with no fluid leaks or anything else wrong that would lead to either conditon. The oil in the crankcase at the time was approx 5 months old and about 4K worth of use. The engine is not known for being hard on oil as I said and the vehicle is not abused/beat on either...
That's not good. While the engine should be fine, varnish with only 4k OCI using a synthetic oil is not good. Maybe Wmart had Q torque on clearance for a reason.
To the OP, my vote goes to PP.