Tim Dahle Nissan Southtowne

So I typically don't Rant... but what I have been going through with Tim Dahle South Towne Nissan service department is BEYOND RIDICULOUS, here's the short story.. I bought my car just before christmas and had their service department do the oil change in February 4 days later my turbo and motor have to be replaced because of OIL STARVATION! The first shop that looked at it had to put 3qts of oil in my car just to get the oil to register on the dip stick!! No my car didn't have a oil leak nor did the oil plug fall out so where did the oil go??? Not in my driveway... While if you ask South Towne Nissan's service department assistant manager or manager they will have all kinds of stories saying that Subaru knows there's an oil consumption issue (yep they do but on newer Subarus and Subaru is assisting those customers) my Turbo probably kicked out 3qts of oil (with out me NOT knowing) ADD in story time: they have 3 subarus in their shop with the same kind of issue (2 days later and the other manger said they had 5 Subarus in the shop with this issue)....They continued to try and Throw subaru under the bus and state that there is such an issue with Subaru that they had to use a used motor because Subaru didn't have any motors in stock...Yeah NO!! I called around and wow to my shock found plenty of Subaru motors... Basically the assistant manager and the manager of the service department treated me like a stupid girl that was trying to blame them for something they didn't do and that they could prove it by all these stories and videos.. I have tried so many avenues to talk this out and at least find someone to at least treat me with some brains.. The sales manager (Grin P) and the service GM (Josh) at least treated me respectfully and listened when the service advisers/ assistant Manager and Manager (John D and Andy) treated me like a silly stupid girl. I finely get the video of my oil change (after I've been requesting the video for a week) - it's so low quality has no time stamp, can't see my licence plate nor the oil meter and its under 2 minutes long.. So they state they aren't at fault and have proof they did what was required of them but want to make me happy and are willing to assist me in replacing my motor at cost to save me some money..