Owner reviews for engine oil

B46 which is essentially a B48 engine. 105000km. Running Castrol Euro Car 5W30 in the summer and 0W30 winter. Live in Canada so the ambient temp can range from -30C to +35C.

We've ran AMSOIL since 2014, well worth it.

Liqui Moly is better and it's what I use exclusively.

Shell rotella t6 15w40 in my 86 Concours. Because it's full syn, readily available at the farm stores, and ol' Connie likes it.

I’ve got a 2019, and I’ve been using LiquiMoly TopTec 6200 since I bought the car, mixed highway and city driving. I’ve been changing it between 5,000 and 6,000 miles (8,000-10,000km), and it doesn’t consume a drop, engine runs like a dream.

My 14' outback burned 1-2qts between oil changes based on driving (lots of short trips or visits to the mountains burned more.) Never had any blue smoke on startup or during driving.

Down to .5-1 qt low after 5000 miles now.

I am an oddball, I have some semi-synthetic 15w-40 diesel oil in mine.

Amsoil is great stuff. It’s my first choice, right beside Redline.

I personally have used the RN17FE 0W-20 (Renault branded Castrol GTX bottles) for 10k km after the innitial oil that was filled in the factory (I don’t know which one was filled in factory). I haven’t noticed any better fuel economy but that can be tough to determine because I drove the car mainly through the winter and did more shorter trips than the original factory first fill oil that I drove with during spring and summer.

Had my gle350d 4matic oil change garage used Oil Designed for Ford cars believe it was A5 castrol

Nearly 3000miles later engine rattled. On stripdown found shell on crankshaft had welded to crankshaft. Eng report it was shell  slippage.