Quote:
Originally Posted by regal
So is PurePlase base GTL? I agree in prefering GTL to the GroupIV and V. Sounds more like a gimmick with a small amount in Platinum, maybe Ultra will be the real deal a low NOAK is important in any DI engine even with the port injectors we have.
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Yep, PurePlus is Shell's marketing speak for GTL. And the NOACK on the 5W-20 is better than it is on the 0W-20 (10.5 vs 12.5). The odd thing is that the old Ultra 5W-20 had an even better NOACK at 5.0. The new data sheets:
http://www.epc.shell.com/Docs/GPCDOC...)_(en)_TDS.pdf
http://www.epc.shell.com/Docs/GPCDOC...)_(en)_TDS.pdf
Of course, 0W-20 is specced because it gives you a .25% improvement in fuel economy for the first 10 minutes of driving.
-Dennis