Engine oil Mobil or Shell

I love the Mobil 1 ESP 5w30 for normal duty. It meets the latest 504.00/507.00 VW standards (newer than 502/505), and is specifically designed for diesel motors. Turbos are tough on oil, and diesel oils take prolonged periods of high heat much better.

I'm using Rotella T6 5w40 in my car. For the money, it's one of the better buys for oil since it holds up so well. It's got good additives that don't shear down quickly, decent amounts of zinc and phosphorus, and it works in just about anything - cars, trucks, diesels, bikes with wet clutches, etc.

i have used M1 0-40 for years and its been great IMHO. not too thick at startup, not too thin at op temp.

rotella t6 5w40 diesel oil. nothing else.

Mobil 1 0W40 VW 502... Great stuff.

I use Mobil 1 full synthetic(type 4)20w50 in the summer and 10w40 in the winter(we range on temps here widely, hence the change in oil viscosity by the season).

I use Mobil1 0W-40 on a 149K motor.

I use Rotella 5-w40. I've been using it for like 5 years in my 02 1.8t and haven't noticed any wear really at all. I drive pretty aggressive, redline 3+ times a day.

I've used 0W40 Mobil 1 Full Synthetic from the beginning. I have Blackstone Labs constantly analyze my oil. It started with several 5k mile analysis and then I upped it to every 7.5k miles. The oil analysis came back very healthy on all 5k and 7.5k mile analysis, and led me to up it once more to every 10k oil change interval which it will remain. I use the larger Passat 1.8T oil filter. The engine has almost 170k miles on it and still running strong.

Mobil 1 0W-40, never lost a drop of oil with 72,000 miles APR Stage 2