Costco Limits Motor Oil Sales

Yesterday I published a blog post that highlighted the fact that Costco has begun to limit motor oil sales. Customers will be limited to 2 quarts per week.

You might be thinking “So what?” Followed by “I’ll buy 2 quarts this week, 2 the week after, and 2 the week after that. Then I’ll have enough for an oil change.”

While that thought process on its face is accurate, it misses the point:

Many comments from people "yeah but I only change oil every 5000 to 6000 miles". That is not the point. The point is that Costco via Kirkland, has a high resolution view of all supply chains relevant to Costco.

That perspective has resulted in them enacting rationing; that means… https://t.co/YSKnYYT8P3

— Gavin (humanist/acc) (@GavMcCracken) September 13, 2026