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Alternative to Exxon Superflo
I've been using Exxon Superflo 5W-30 and 15W-40 but they no longer seem to be available. A local distributor told me that Mobil Delvac was the same as Superflo, but I find nothing about Mobil Delvac on your website. How do I go about getting more Exxon Superflo? If it's made under the Mobil brand now, which oil is it? If there is no equivalent, which Mobil oil is slightly better for engine wear protection than Superflo?