Costco Starts Rationing Motor Oil

Along with a price hike, stores are now imposing a two-per-customer, per-week limit on motor oil.
By Ed Scarce — September 16, 2026

The price of Costco's own synthetic motor oil has almost doubled now, thanks to Mr. Trump.

Source: Associated Press

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.

Americans looking to try to save some money by purchasing motor oil to do their own oil changes may consider this yet another blow to their wallets, as they are already contending with high grocery prices and inflation worries.

Costco’s Kirkland Signature full-synthetic motor oil 5-quart two pack now costs around $58, well above the approximately $30 it had been selling for just last year. Costco is also only allowing customers to purchase two boxes a week.

The wholesale club operator is also limiting purchases of Mobil 1’s full-synthetic motor oil 1-quart six pack, which sells for about $44, to five per membership.

Costco did not immediately reply to a request for comment.

Grim.

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