Q : If there is a gas leak on an NGV-fueled vehicle, what should the motorist do?
When there's a gas leak, the motorist should:
1. Close the gas tank valve
2. Switch to oil
3. Go back to the NGV engine installation garage for repair.
Q : For long-distance driving, can gas be solely used or should gas and oil be used alternately? If alternate use is necessary, how should switching be done?
Q : How can I obtain a ‘Fleet Card’?
1. NGV customers preferring to use the Fleet Card for NGV refueling only may contact the Service and Customer Relations Department at 0 2537 5881.
2. Oil customers wishing to use the Fleet Card for both oil and NGV plus lubricant products may contact the System and Service Station Development Department at 0 2537 2434-5 or 0 2537 2446.
Q : When a gold card is lost or damaged, what should the cardholder do? What evidence is required for personal and corporate cards?
For lost cards, the following documents are required:
1.1 A police daily report (original copy) (stating that an NGV refueling card for vehicle with registration plate number…………is lost)
1.2 A copy of the car registration
1.3 Pay 100-baht fee per new card per vehicle at the cashier during 09:00 – 16:00 hours, Monday – Friday except public holidays.
1.4 Take the receipt to the NGV Refueling Card Office, 1st floor, PTT Head Office, for card reissuance.
* For corporate cards, a copy of the Commercial Registration is also required.
** If the car owner is not the one to notify the policy, a power of attorney letter is required.
For damaged cards:
The damaged card and a copy of the car registration are to be used for card reissuance free of charge at the NGV Refueling Card Office, 1st floor, PTT Head Office. Customers not residing in Bangkok Metropolis may fax the money transfer slip of 100 baht per new card per vehicle together with the name, address, phone number, and car registration number to 0 2537 3888.
* For corporate cards, a copy of the Commercial Registration is also required by fax
** Please give a call to confirm fax transmission at 0 2537 3777.
Q : What documents are required for annual equipment inspection? Are the same documents required at every inspection site?
Q : Where can I ask for a map of PTT NGV stations?
Q : Is it safe to do NGV refueling during a thunderstorm?
Q : Why is low gas pressure encountered at some stations?
Q : Why isn’t NGV price standardized across the country?
Q : What is PTT’s policy on making NGV sales price in integers (satang)?
Q : Why does the word ‘duplication’ appear on the tax invoice received from the station?
Q : If a mistake is found on the receipt/tax invoice, what should I do?
Q : If my receipt/tax invoice is damaged or lost, what should I do?
If a receipt/tax invoice is damaged or lost, customers must fill out the ‘Request for Issuance of a Replacement/Copy of Receipt/Copy of Tax Invoice Form’. Such request must be filed within two months along with a receipt/tax invoice (for damage case) and a police daily report (for loss case) attached.
Alternatively, customers may scan the QR Code to verify data of the two previous days from the date of the receipt/tax invoice. Also, customers may click https://taxngv.pttplc.com and provide information as seen on the receipt/tax invoice.
Q : What are the current sizes of NGV tanks?
NGV tanks for vehicles in the Thai market consist of:
|NGV tank size||Volume||Suitable for||Number of tanks|
|60 liters||12 kg||Vans||2 per vehicle|
|70 liters||14 kg||Personal cars||1 per vehicle|
|100 liters||20 kg||Taxis||1 per vehicle|
|145 liters||28-29 kg||6-wheeled trucks and larger||6-8 tanks per vehicle|
Q : How can I obtain the names and addresses of NGV dealers, inspectors, and testers?
Q : What is ‘NGV of new specifications’? Is it compatible with vehicles in general?
Q : How can I know the expiration date of a CNG tank?
Q : Can NGV motorists increase their refueling quotas after having installed a larger tank or more tanks? If so, what should they do?
Customers residing outside Bangkok Metropolis may send a scanned version of all documents required with a photo of the vehicle attached.
Q : Can the discount card for personal taxis be used outside defined areas?
Q : Does the NGV discount card have an expiration date? If so, where should the card be renewed?
** NGV Card Office from Monday to Thursday (09:00 – 16:00 hours) and on Friday (09:00 – 15:00 hours) with a lunch break during 12:00 – 13:00 hours **