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

As oil prices continue to rise, Costco puts the brakes on how much shoppers can stock up on.

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

A Cleveland auto shop says motor oil costs are up about 25% as global supply pressures grow.

Castrol is often considered engine oil royalty. Its products are great, make no mistake, but there are some underrated oil ...

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

Costco this week raised the prices of its store brand synthetic oil and placed maximum limits on synthetic oil purchases.

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

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

Costco is now capping Kirkland and Mobil 1 motor oil purchases each week as oil prices soar, gas hits $4.32 and diesel ...

Local auto shops say wholesale costs are rising, adding about $5 to oil change prices ...