let's see. this is a family member's car so I don't know everything about it -- it was purchased used as a Saab certified used vehicle (off-lease). since purchased it has had mostly ~5k quickie-lube OCIs with whatever dino they put in.
I advised to use Syn in a turbo, so he had them put Mobil 1 in last time.
he doesn't drive hard, and the car is an automatic. again, about 50/50 hwy/city driving. the motor is noisy, and appears to blow some smoke at cold start. transmission died, dealer replaced FOC.
Since pulling the sample I have taught him how to change his oil. we put Rotella T 5W40 in for a short rinse OCI (will dump it when the blotter begins to look nasty). then I'll have him run M1 5W40 TDT for 3k and re-sample.
the air box is at the bottom of the engine bay, right up next to the radiator in the corner. there's a chunk of it missing on the bottom side, exposing the filter media to the open road. the crack appears to extend all the way to the center/clean side, but it must've kept its seal.
