Thanks for the advice. Definitely not trying to just save a few bucks. I merely want to drop the oil and filter at 9000K KM - which is halfway to the 18000K KM that the dealer will do it.

There is no way of them knowing that I even changed the oil - which is what I would prefer. If I buy oil /filter from them and something goes wrong with the engine, could they not also say that it was due to the fact that I worked on the engine?

I want my intermediate oil change completely under the radar if possible. This will avoid any issues/questions about liability down the road while under warranty I think.

On that note, I presume as long as Syntec meets the specifications, it should be suitable.