The Castrol Mother’s and Father’s Day Promotion 2026 is a rebate and sweepstakes promotion from BP Lubricants USA Inc. The sweepstakes portion features five $5,000 grand prizes awarded as checks.
How to Enter
Entrants may participate in the sweepstakes through a verified rebate submission tied to eligible Castrol motor oil purchased at O’Reilly or Parts City. A valid receipt must show the eligible product, purchase date, retailer location, price paid, and receipt total.
A free alternate method of entry is also available by mail. The rules state that a purchase is not required to enter the sweepstakes and does not increase the chances of winning.
The sweepstakes allows one entry per person, household, or address for the full promotion period. A random drawing is expected to take place on or around August 5, 2026.
Eligibility is generally open to U.S. and D.C. residents, except Rhode Island residents, who meet the age requirement. The winner is responsible for applicable taxes connected with the prize.
The official information is posted on the Castrol Mother’s and Father’s Day Promotion page.