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Chosen to fit, not to cost more
A kit and tank that suit your car and your driving
City or long distance, more boot space or a larger tank. We explain the strengths of each so the decision stays yours.
LPG car conversion
Fit LPG for lighter fuel bills, in the car you already know
Let’s talk it through first: whether it is worthwhile for your car, which kit suits it, and whether the PT programme applies.
Fully licensed
Higher fuel prices do not have to mean changing your car
If you drive every day, fuel is a large bill that returns every month. Gas can lighten it, but the first question is how worthwhile it is for your car. You can work it out from your own driving below.
Fully licensed
Handled by a licensed operator
Check the document number and expiry date below.
- LPG installation, cars
- Number
- ตปร/สป 04-2567
- Licence holder
- Weewin International Business Co., Ltd.
- Valid until
- 15 Nov 2027
- LPG installation, transport vehicles
- Number
- ตปข/สป 01-2567
- Licence holder
- Weewin International Business Co., Ltd.
- Valid until
- 12 Dec 2027
- CNG installation
- Number
- ตธร/สป 02-2569
- Licence holder
- Weewin International Business Co., Ltd.
- Valid until
- 8 Jun 2029
Numbers and expiry dates are as shown on the documents held by each company.
Care after fitting
After fitting, the checks and registration stay with us
Tuning on your actual car, system check, fuel change registration and insurer notice. When the yearly check comes round, you come back to the same place.
PT LPG programme
If you qualify, fitting costs less still
The programme reduces fitting by up to 14,500 baht under its terms, in exchange for a minimum fill at PT stations. We can check which terms fit your car.
Updated 18 Mar 2026. Terms may change with PT announcements.
The same car, the same roads, and a lighter bill each month.
Talk to us on LINEGood to know
How many months to pay back?
At 2,000 km a month, fuel costs fall by about 53% in this example. Change the figures to match your car.
What does the PT LPG programme offer?
The programme reduces installation cost in return for a minimum monthly fill at PT stations for 36 months.
| Item | Auto 100 L | Auto 200 L | Taxi | Grab/Bolt/Lalamove |
|---|---|---|---|---|
| Installation | 6,000 THB off | 10,000 THB off | Pay 1,999 THB | 14,500 THB off |
| Minimum fill/month | 100 L | 200 L | 500 L | 500 L |
| Contract | 36 months | 36 months | 36 months | 36 months |
| Fuel discount/litre | Litres 1–200: 1 THB; 201–500: 0.70; 501–800: 0.20 | Litres 1–200: 0.50 THB; 201–800: 0.20 | Litres 1–800: 0.70 THB | Litres 1–800: 0.70 THB |
| Max Card Plus | Free 1 year | Free 1 year | Free 3 years | Free 3 years |
Information as of 18 Mar 2026; it may change according to PT. Our staff confirm the latest terms before you apply.
Can your car join the PT programme?
Tick what matches your car. This is a first check, and our staff will confirm eligibility.
Which kit and tank should you choose?
The right kit depends on model, cylinders and use. Options include Energy Reform, AC, AEB, Prins and Europe Gas, including DI systems.
Donut tank
Fits the spare wheel well, leaving more boot space.
Capsule tank
Often holds more gas and suits long distances, but takes boot space.
Warranty
Free service, checks and tuning for 1 year, equipment 1–2 years by brand, ECU up to 5 years.
How does installation work?
- ConsultSend the model and year, check PT eligibility and choose a kit.
- Book and payConfirm the price and date before installation.
- Install and tuneFitted with care and tuned on your actual car.
- Inspect and certifyThe system is checked and a certificate issued.
- Book and insuranceReport the fuel change to the transport office and your insurer.
Should an NGV car switch to LPG?
NGV stations fell from 507 in 2018 to 257 in May 2026, and NGV cost about 20 THB/kg. If stations are hard to reach, compare the cost with LPG.
- Check which old parts need removing
- NGV cars can join PT under its terms
- We keep servicing NGV cars if you are not ready to change
Sources: EPPO, Thai PBS, Energy News Center. Prices may change.
Interested in the PT LPG programme?
Leave your details and our team will call within 24 hours at a time that suits you, to talk it through before you decide.
Real reviews on Google
Reviews from our customers
4.8 stars from 1,143 Google reviews (as of 4 Nov 2026) · All reviews on Google
★★★★★
This is my second car with gas fitted here. All tidy, no problems. You can sit or lie down and wait at the shop all day.
★★★★★
Took my Accord G8 for installation and road tax together. Convenient, and the installation kept to plan. I have used it for 3 weeks with no problems. The waiting room has enough space, and food is a short walk away at the PTT station. Recommended.
★★★★★
My first car had gas fitted here, and so did my second. Anyone wanting gas can trust Mongkol Auto Services. Good service and good standards.
★★★★★
I chose this shop for LPG because it is a standard, reliable installer with many reviews, and I was impressed when I came. Good service, and every question was answered clearly. 5 stars.
★★★★★
I recommend Mongkol Auto Services to friends who want gas. You will not be disappointed. All the staff are welcoming, give details and can answer everything. Above all, gas really saves money. Thank you.
★★★★★
I had gas fitted here 4–5 months ago with no problems. The centre books a check every 10,000 km. Impressed. Good service, with a lounge to sit in while waiting.
★★★★★
Very impressive service. The technicians are skilled and can answer any question. This centre has also been fitting gas for over 20 years.
★★★★★
Came for an installation. Good service from the receptionist right through to the technicians, who gave very good advice and really care about service. The waiting room is spacious with cool air-con. Highly recommended. Anyone wanting gas fitted, LPG or NGV, come here, I guarantee it.
★★★★★
I wanted to save on household travel costs because I use the car every day, so I looked for a gas installation centre until I found this one. They gave good information and good service, the waiting room is clean and spacious, I got a discount, and the LPG installation took the 6-7 hours they said it would.
★★★★★
Came to get gas fitted here. Good service, done within one day, just come early. I've used it for almost 3 months now and it's still normal, no problems. Recommended.
Frequently asked questions
How much does LPG installation cost?
It depends on the model, cylinders, tank and kit. Send the model and year for a price.
What is the PT LPG programme?
A reduced installation cost in return for a minimum monthly fill at PT stations for 36 months.
Which cars qualify?
Petrol or NGV cars registered within 9 years that have not used a PT LPG benefit in the last 6 months.
What about cars over 9 years old?
You can request special consideration.
What if I do not fill enough?
A fee of 3 THB per litre applies, averaged quarterly, and you can make it up in the next quarter.
Can Grab, Bolt and Lalamove drivers join?
Yes, with documents submitted for approval for every car.
Can diesel cars join?
No. The PT programme does not accept diesel cars.
What documents are needed?
Staff will list them by programme. Usually an ID card copy, driving licence and registration book.
When do I pay?
The application and installation fees are paid in full before installation.
How long does installation take?
It depends on the model and kit. We confirm when booking, and you can wait in the lounge.
Will my insurance still cover me?
You must tell your insurer about the gas system. Our InsureFriend team can review the terms.
Do I need to update the registration book?
Yes, the fuel change must be reported to the transport office. We can do this for you.
Can I pay in instalments?
Payment terms change over time. Please ask on LINE @mgas.
Where are PT stations?
See the LPG stations page on this website.
Related services
When you are ready
Tell us how you use your car
Send your model and year, and we will help find the kit and benefits that suit you.
LINE
Opening hours
Mon–Sat 08:00–18:00
299/11 Moo 5, Srinakarin Road, Bang Mueang, Mueang Samut Prakan, Samut Prakan 10270, Thailand