Costco raises price for Kirkland motor oil, sets purchase limit

By The Washington Times (Business) | Created at 2026-09-14 22:10:32 | Updated at 2026-09-19 00:37:30 4 days ago
Costco has raised the price of motor oil sold under its exclusive private-label brand as well as limited how much of it customers can buy weekly as oil prices climb yet again.
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