Why does an oil change shop need its own software?
An oil change shop lives on repeat visits. A car that came in at 45,000 km should be back at 50,000 km, and the shop that reminds the owner first usually gets the job. A general billing app does not know the car, the oil grade it takes or when it is due. RMS does. It is oil change shop software built around the vehicle: every bill is linked to the plate, the odometer reading and the oil and filters used.
When the car comes back, the counter sees the last oil, the last km and the next change in one place. No flipping through a register, no asking the customer what they used last time.
How does RMS bring customers back?
Each vehicle has a “next change after” interval (3,000, 5,000 or 10,000 km). RMS works out the expected visit date from how far the car usually drives a day. Every morning the Due list shows:
- cars due for service by km or by days since the last visit;
- customers not seen for a while;
- customers whose payment is due or whose promised date has come.
Call or message from your own phone, record the result (called, will come, no answer) and print the list as a calling sheet. When the car comes in, its reminder closes by itself. The windscreen sticker with the next change km also does its quiet work every time the driver looks up.
What about credit, cash and the drum?
Fleet owners and regulars often pay later. Put the unpaid part on their account with a promised date, and collect old balances with the next bill. The account statement shows every bill and payment with a running balance.
Engine oil bought in a 208 L drum can be sold by the litre: open the drum and its litres come into stock at the right cost, so 3.5 L or 4.5 L bills correctly. Bottled oil can be counted in litres or gallons and bought by the carton. At night, count your notes and coins and RMS shows whether the drawer is short or over. Card, mobile wallet and bank transfer payments are kept apart from the cash, and one bill can be split across them.
Everything works offline on the shop’s own computer, in your own currency, so a power cut or a dead internet connection does not stop the counter.
Try it in your shop
Install RMS, choose “Oil change” in the setup wizard and add a few of your regular cars. The free 14-day trial includes every Pro feature and needs no card.



