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Deleted member 89374
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I believe also now in API SP
It's for all other markets except the US. In the US the government has strict regulations when it comes to 5W-30 oils. So there are two clever ways that are now used to selling full SAPS 5W-30 oils in the US: one is to mark them as API SL and the other one is to sell thin 0W-40 Euro Spec oils that essentially shear down to a 30 viscosity. That's why I was asking where I can get this Shell Helix Ultra 5W-30 in the US.
For example, eons ago when Crysler developed the 6.4 HEMI 392 (Apache) engine. God, I wish I had a Charger Scat Pack with that motor under the hood
Anyway, as I have found out on this forum, it was developed to be used with 5W-30 oil. Unfortunately, because of how ILSAC 5W-30 oils are formulated, and not wanting to take any chances, Crysler / FCA decided to skirt government regulations and went with a thin 0W-40 oil that's essentially a high viscosity 5W-30 (Pennzoil Ultra Platinum SRT 0W-40). So are Mobil 1 FS 0W-40 and Castrol EDGE 0W-40 for that matter. The only difference between these 3 oils is that the Pennzoil is a low SAPS formulation that Pennzoil made specifically for FCA, just like Mobil 1 made ESP 0W-40 for GM. Politics, the environment, and motor oils...