That's a solid choice. Actually, the quart bottle is called the "white bottle."
Red Line lists 5W-20 as oil that meets the MS-6395 specification, so you're covered by the manufacturer's warranty.
After several emails back and forth with Mr. David Granquest, they agreed to list 0W-20, 0W-30, and 5W-30 as meeting Ms-6395 as well. Just check out their website.
Per the owner's manual, the oil you use has to either meet MS-6395 or be API licensed, but not both at the same time. This is awesome news!
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