Costco has raised the price of motor oil sold under its exclusive private-label brand as well as limited how much of it ...

Here's why Costco Wholesale increased the price of its motor oil products.

As refiners now make more money turning crude oil into petrol, motor oil could face a significant supply squeeze.

Costco is limiting sales of its house brand motor oil to two units per customer per week amid rising oil prices.

A 10-quart case that cost roughly $30 now runs $57.99, with purchases capped at two units per member per week.

Costco is rationing its Kirkland Signature motor oil as a global shortage of a key ingredient used in synthetic lubricants ...

Costco stores increased price of synthetic motor oil by $30, and set a purchasing limit as Iran war continues. How many California locations affected?

Costco's price hikes are part of a broader increase amid the ongoing Iran War conflict, with higher costs increasingly being ...

A price hike and purchase limits may take you back to the days of empty shelves where toilet paper once stood, but this ...

The wholesale retailer has raised the price of a 10-quart case of Kirkland Signature full-synthetic oil from around $30 to ...

Two 5-quart bottles of Kirkland's fully synthetic 5W-30 motor oil now cost $57.99, with buyers limited to one purchase per ...