[Topspinmo]

Originally Posted by tophcfa

If they are using Amsoil signature series oil, and a WIX XP oil filter, then that would be OK. I wouldn’t push any other synthetic oil past 7K. My Nissan Frontier is approaching 200k and doesn’t burn any oil after going 9k-10K between oil changes using exclusively the Amsoil/WIX combination. Hoping to get another 100k out of the Frontier.

https://www.youtube.com/watch?v=e8dCFcF0qBQ

[kkingston57]

Originally Posted by Topspinmo

Ok, if want see what carbon build up and IMO lack oil changes does too turbo/direct fuel injection engine does to piston rings. Here good video.

https://www.youtube.com/watch?v=VhR2kMIr3NA

IMO GDI turbo engines may be new junk engines surpassed 1980s designs. IMO engine with fuel injection going down intake above valves don’t have severe carbon build up due to valves getting sprayed by fuel mist going to combustion chambers.

This Is My opinion I would not skimp on oil changes intervals with GDI (direct injected) engine especially With turbo which generates more heat and pressure on top piston ring groove.

IMO 2017 vehicle not that old to have major engine damage (but don’t know history?). By all slug buildup IMO looks like oil change intervals was too long? This all my opinion others may have different opinion which will probably not change mine.

Have been driving 50 years. Never had an oil change before the recommended change. Never had an engine problem including oil burning. Dealers have a good mark up on oil changes and like to see cars come in(they will find other problems). Why would anyone want to get oil changed earlier than the length the manufacturer recommends unless they are doing things like pulling a trailer?