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Message: <blockquote data-quote="Schwepps" data-source="post: 361852" data-attributes="member: 3592">I would agree with turbology again. If you change at 10-12k, LL spec isn't really necessary. And even a good G-III would be fine. There's nothing wrong with G-III, it's highly refined mineral oil and the vast majority of cars run on them here and worldwide. Just see through the marketing hype and know what it is you're paying for, that's all.A G-III or G-IV base oil is homogeneous from a refinery or plant. It's the additives that determine the properties such as HTHS, viscosity, etc to give you the various grades of oil. Eg, the difference between a 0W-30, 5W-30, 5W-40 is only in the hydrocarbon viscosity modifier added to the base oil by the blender. It's the same base oil.Any good oil of reputable brand will be adequate if you're not anal about it and change often. More important to avoid buying a ciplak oil which may have recycled or adulterated portions. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink    ;)" loading="lazy" data-shortname=";)" /></blockquote>