Petrol & Oil Interceptor Maintenance Checklist
Stop fuel and oil reaching the drains — six-monthly inspection and emptying, alarm testing, silt removal, waste paperwork and spill response.
Also available as editable Excel and Word — with asset, sign-off and findings columns.
What is a petrol interceptor maintenance checklist?
A petrol & oil interceptor maintenance checklist is a structured list of the 7 preventive maintenance tasks — covering visual, functional, cleaning, safety and record-keeping checks — that keep a petrol & oil interceptor running safely and reliably. It groups routine checks by frequency, from daily inspections to annual servicing, so FM teams and building engineers can plan and evidence preventive maintenance.
Core petrol interceptor checks
- Inspect oil and silt levels in each chamber
- Test the high-level oil alarm
- Arrange emptying before oil or silt reach the design limit
- Confirm spill kits are stocked near fuel and loading areas
- Keep waste consignment notes for oil and silt removed
What is a petrol & oil interceptor?
A petrol or oil separator (interceptor) sits in the surface water drainage from car parks, service yards and fuel areas and holds back oil so it cannot pollute watercourses. It only works if it is emptied before it fills: oil and silt build up, and a full interceptor passes pollution straight through. BS EN 858 covers separator design; Environment Agency guidance expects regular inspection and emptying, commonly every six months, with the oil-level alarm tested and the waste removed by a licensed carrier.
This checklist is one of 27 in our plumbing and water system maintenance checklists, covering pressurisation units, booster sets, storage tanks, TMVs and water treatment — pressure, hygiene and legionella control.
Typical Petrol Interceptor maintenance checklist
A practical starting point for planned preventive maintenance. Always refer to the manufacturer's O&M manual and site-specific requirements.
Visual Checks
- Inspect oil and silt levels in each chamber
- Inspect covers are secure and the chamber is structurally sound
Functional Checks
- Test the high-level oil alarm
Cleaning & Housekeeping
- Arrange emptying before oil or silt reach the design limit
- Check inlet and outlet pipes and any coalescer are clear
Safety Checks
- Confirm spill kits are stocked near fuel and loading areas
Record Keeping
- Keep waste consignment notes for oil and silt removed
Download the free Petrol Interceptor maintenance checklist PDF
Get all 7 tasks as a printable PDF — free, no signup needed. Keep a copy in the plant room, attach it to work orders, or share it with your maintenance contractor.
The PDF is free and needs nothing. The Excel and Word versions add asset details, sign-off and findings columns so you can record the work as you do it — we ask for an email address for those.
Typical maintenance frequency
Suggested intervals for petrol & oil interceptor maintenance. Actual frequencies should follow manufacturer guidance and site-specific risk assessments.
Monthly
- •Check the alarm panel
- •Visual check of covers
Every 6 Months
- •Inspection and emptying
- •Alarm test
- •Silt removal
Common faults and issues
Issues to be aware of when maintaining petrol & oil interceptor equipment.
Safety and compliance notes
Key safety considerations for petrol & oil interceptor maintenance. This is general guidance only — always follow OEM instructions, statutory requirements, and your organisation's safe systems of work.
Reference standards and frameworks
- United Kingdom
- HSE ACoP L8 and HSG274 for water hygiene
- North America
- ASHRAE Standard 188 (legionellosis risk management)
- Middle East
- Dubai Municipality's Green Building Regulations require commissioning to CIBSE Commissioning Code W (water distribution)
Frameworks commonly referenced when planning petrol interceptor maintenance programmes. Always confirm the requirements that apply to your site and jurisdiction.
Managing Petrol Interceptor documentation with PM Assist
PM Assist helps FM and building operations teams search their O&M manuals and building drawings in seconds. Upload your petrol & oil interceptor documentation and ask questions like “When was the interceptor last emptied?” or “Where is the car park interceptor?” — and get source-cited answers instantly.
The checklist tells you what to check. The manual tells you the numbers.
Ask a petrol interceptor manual a question and get the answer back with the page it came from. No signup, and you can drop in your own PDF instead of the sample.
“When was the interceptor last emptied?”Runs against a sample chiller manual so you can see the shape of the answer — then try it on one of yours.
Take this checklist with you
Download the branded PDF, generate a custom version for your asset, or run AI search across all your building documentation.
Related free tools
Further reading on petrol interceptor maintenance
Compliance topics for petrol interceptor maintenance
Compliance & CAFM
Run petrol & oil interceptor maintenance in PM Assist
This checklist is also a planned maintenance programme in PM Assist, included in every paid plan alongside the compliance register and mobile inspections.
- Add a petrol & oil interceptor to a building's asset register and this maintenance programme is created for you, with each task on its frequency in the planner.
- Petrol / Oil Interceptor Service is tracked on the compliance register, with the date last done, the date next due and the certificate.
- Contractors can be given a login to see their jobs and upload certificates.
Frequently asked questions
How often should a petrol interceptor be emptied?
Is an interceptor alarm required?
Who can empty an oil interceptor?
Manage your building documentation with AI
PM Assist gives FM teams instant access to O&M manuals, drawings, and maintenance knowledge — all searchable with AI.
- Upload and organise building documentation
- AI-powered search across all your manuals
- Source-cited answers for maintenance queries
- Team collaboration and access control
- No credit card required to start