Kirkland Signature · Auto

Who makes each Kirkland Signature Auto product?

3 Auto products researched and graded. Answers range from confirmed makers with archived citations to unknowns, where no reliable public evidence identifies the maker.

Confirmed 1 Unknown 2

Auto Automotive Battery (lead-acid; discontinued, replaced by Interstate) Unknown Maker not established Auto Gasoline (Regular 87 / Premium 91, sold at Costco fuel stations) Unknown Maker not established Auto Motor Oil (Full Synthetic 0W-20, 5W-20, 5W-30) Confirmed Made by Highline Warren

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