Apply for a Diamond Sky Fuel Card

Promotions / Apply for a Diamond Sky Fuel Card

Maybank Exclusive

Apply for a Diamond Sky (DS) Fuel Card from 1 September to 31 October 2026 to enjoy 22% off on fuel savings, plus a bonus S$20 credits with a minimum spend of S$100 to offset your next transaction at Caltex stations – one of the highest in town!

How It Works

Register for a DS Fuel Card here
Link your Maybank Credit Card to your DS Fuel Card account
A one-time S$2 card issuance fee will be charged to you for each application of the DS Fuel Card.
Head down to any Caltex stations, set up your PIN upon your first pump.
Charge a minimum of S$100 on your first fuel purchase using your DS Fuel Card to receive S$20 bonus credits.
- The S$20 bonus credits will be credited into your Diamond Sky account within three (3) working days and can be used to offset your subsequent fuel purchases.

Click here to view Caltex stations islandwide.

Breakdown and Illustration

Maybank Credit Card Type	Family & Friends	Horizon Visa Signature	Platinum Visa	World Mastercard & Visa Infinite	Other Maybank Credit Cards
Instant Promotional Fuel Discount	22%	22%	22%	22%	22%
Admin Fee (after discounted amount)	2.5%	2.5%	2.5%	2.5%	2.5%
Maximum Additional Rebate¹	Up to 8% cashback (under "Automotive" category)	Up to 3X TREATS Points	Up to 3.33% (per quarter)	Up to 10X TREATS Points	Respective card benefits apply
Total Fuel Discount	Up to 26.45%	20.05% + up to 3X TREATS Points	Up to 22.71%	20.05% + up to 10X TREATS Points	20.05% + Card Benefits

¹Subject to the Maybank Cardmember fulfilling the applicable requirements under the promotions/programmes in connection with the respective Cards. For supplementary Maybank Cardmembers, any TREATS Points will be credited to the corresponding principal cardmember’s card account.

Below is an illustration of how the S$20 Bonus Credits discount is applied to your total petrol bill when you pump at Caltex stations with the DS Fuel Card with a Family & Friends Card.

Gross Fuel Spend	S$100
Bonus Credits	S$20
Instant Fuel Discount (after deduction of Bonus Credits)	22%
Revised Fuel Bill	S$62.40
Admin Fee (2.5%)	S$1.56
Final Fuel Bill	S$63.96
Family and Friends Card 8% cashback	S$5.12
Final Fuel Bill using Family and Friends Card	S$58.84
Final Discount Rate	41.16%

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Terms & Conditions

New-to-Diamond Sky Fuel Card Promotion

This Promotion is valid from 1 September to 31 October 2026, both dates inclusive.
To be eligible for the Promotion, Maybank Cardmembers must successfully apply for a Diamond Sky Fuel Card (“Fuel Card”) issued by the Merchant using the Merchant’s online application form that is unique to Maybank during the Promotion Period. If Maybank Cardmembers’ application for the Fuel Card is successful, the Fuel Card will be linked to their Card.
For avoidance of doubt, this Promotion is not available to Maybank Cardmembers who hold an existing Fuel Card and/or have cancelled any Fuel Card within twelve (12) months prior to the start of the Promotion Period.
Maybank Cardmembers who have successfully applied for a Fuel Card during the Promotion Period and whose Fuel Card is linked to his/her Card may enjoy the respective discounts illustrated in the table above.
Fuel Card Applicants who meets the following requirements will be given S$20 credits in their Fuel Card to offset against their subsequent fuel purchase at any Caltex station in Singapore:
- The purchase must meet the minimum gross spend of S$100 on their first single fuel transaction by 30 November 2026 and transaction must be posted to their Card account by 30 November 2026.
- For avoidance of doubt, the S$20 credits (if applicable) will only be reflected in the Fuel Card Applicant’s Diamond Sky account statement within three (3) working days, which can be viewed upon logging in to his/her Diamond Sky account, and will not be reflected in the payment slip or the Fuel Card Applicant’s Card statement.
- The S$20 credits will be valid for three (3) months from date of issuance.
- In addition to the S$20 credits as set out in the clause above, a Fuel Card which is linked to a Card may enjoy the discounts and Card benefits under the general Diamond Sky Fuel Card Promotion as may be amended from time to time.
The Merchant will impose a one-time S$2 Fuel Card issuance fee on each Maybank Cardmember for each application of the Fuel Card.
Once the Fuel Card is linked to the Card, all costs incurred on the Fuel Card will be charged to the Maybank Cardmember’s Card.
Each Maybank Cardmember can only apply for one Fuel Card, regardless of the number of Cards owned.
The Promotion is not valid for Star Mart purchases at Caltex stations.
Additional Terms and Conditions of Diamond Sky Fuel Card applies. Visit https://dsoil.net/sg/main.php?pageId=27 for full details.
Diamond Sky Fuel Card Tactical Promotion Full Terms and Conditions apply (PDF)
Diamond Sky Fuel Card Promotion Full Terms and Conditions apply (PDF)
Maybank’s respective Credit and/or Debit Card Terms and Conditions apply.