Mobil 1 ESP Formula 0w-40 (Case - 6 Quarts)
Mobil 1 ESP Formula 0W – 40 is a full-synthetic engine oil designed to prolong life and maintain emission system efficiency in diesel and gasoline powered vehicles. This low ash, low sulfur oil is formulated to be fully compatible with modern Diesel Particulate Filters (DPF’s) and Gasoline Catalytic Converters (CAT’s). It is designed to provide outstanding cleaning power, wear protection and performance.
This said however, I also picked up some Redline 5W/40 Euro formula which has the same Dexos2 approval. I put it in the other vehicle that required the Dexos2 approval and you can tell the difference. They are the same make and engine's with about the same miles on them and the Redline is just smoother. This is the only reason for the 4 stars instead of 5.
You can't go wrong with either product, and to be honest, Mobil 1 saved a race for me onetime and the car ended up winning. Upon teardown I was expecting to see pretty severe damage since the oil ended up being hotter than 360 degrees F for the last 20 laps of the race. Only showed very minor heat pads on a couple of the bearings... we were all amazed. So trust me when I tell you that you can't go wrong with Mobil 1 or the Redline.
over 2 years ago
The Dexos 2 oils minimize this problem. I use the Dexos 2 rated oils and specifically this one in a Duramax diesel. They require the Dexos-2 for the same reasons, to protect the residue of ash and sulfur from hurting the Diesel Particulate filters.
Now, with all of this said, using a standard automotive 0W/40 oil will not hurt your engine. It won't hurt you emissions either in one use of it either. But it is better to be safe than sorry, and as long as you stay with a quality product like Mobil 1 or Red Line Oils with the Dexos-2 rating, their superior lubriacation formulations and elements used will not be a problem.
Lastly, DO NOT USE RACING OIL in your street engine with emissions controls! They use a high level of zinc to prevent wear on the highly loaded metal to metal things such as the lifters and cam followed on the camshaft.