Owner reviews for engine oil

So, I recently drove 2 oils: NGN Emerald 5w30 and Ravenol VST 5w40. I watched the oil temperature displayed on the route book display in different modes, but there were no problems with the temperature.

I found out that I have a really low level on the dipstick. Luckily I had a bit of Kixx 5w30 from another car lying around so I added a few cups which brought me over the minimum. Since then - no warnings!

As a Mercedes-Benz guy, I've used Mobil One European Formula 0w40 in them for decades. It is very good oil. I have well over a million miles on Mercedes-Benz cars using that oil with the extended (10K-15K mile) change interval with zero issues. Several of my cars have gone over 200,000 miles.

I run Rotella T6 5-40 on my VR6 and also an 850 Turbo.

I used Ravenol VST 5w40.

Rotella T6 5w-40

But if you want the short of it:

ANY high mileage full synthetic 5w-30 oil will do great. Mobil 1? Sure. Amazon Basics? Hell yeah. Wal-Mart's Supertech? Send it.

Ran fine when I got it but I switched to amsoil and it has changed the sound of cold starts. MUCH QUIETER!! and seems to have smoothed out the idle over time.

I dropped some 0W-30 Mobil 1 this winter, and my sol with a d15b7 loved it. Made cold starts very smooth, and noticed no reasons not to continue running it.

I've used only 5w30 full synthetic (usually Mobil 1, sometimes others) since I bought mine 15 years ago (D15B7). Using the high-mileage variety nowadays, supposed to help out the old seals etc. Just over 150k miles but engine runs very smooth so seems to be doing the trick.