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Castrol Oil Rebates & Promotions 2025

Discover all current Castrol promotions & rebates! Find the best deals on Castrol motor oil, including EDGE and GTX. Save on your next purchase.

Castrol promotion : Buy 5 quarts of Castrol Full Synthetic motor oil OR get a Castrol Full Synthetic oil change and get $10 Cashback via Venmo or Payp...

Get $10 Cashback + a Chance to Win Big!

Buy 5 quarts or get an oil change with any Castrol® Full Synthetic motor oil to earn $10 cashback straight to your Venmo or PayPal and get entered for a chance to win Castrol RFK Racing VIP Weekend trip during 2026. Follow 3 simple steps to avail cashback: Purchase, submit your invoice, and get cashback after successful validation.

 

*Offer Valid: 12/21/25 – 03/31/26

 

No purchase necessary to enter sweepstakes.
To read the complete terms and conditions, please click here.

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Castrol Image Adaptation for RFK promotion

Save $5 When You Choose Castrol® GTX!

Buy 5 quarts of Castrol GTX or Castrol GTX High Mileage and get $5 cashback via Venmo or PayPal. Follow 3 simple steps to avail cashback: Purchase, submit your invoice, and get cashback after successful validation.

 

*Offer Valid: 12/21/25 – 06/30/26

 

To read the complete terms and conditions, please click here.

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Promotion FAQs

We offer many great rebates and promotions throughout the year. Learn more about our current promotions here.