Tag: Costco motor oil price increase 2026

Costco has begun rationing motor oil – limiting members to just two units of Kirkland Signature full-synthetic every seven days, with Mobil 1 capped at five. The price of a 10-quart case has nearly doubled from $30 to $58, as the Iran war drains global lubricant supply. Diesel has hit $6.06 per gallon for the…