{
  "query": {
    "country": "SG",
    "fuel": "diesel"
  },
  "status": "ok",
  "price": {
    "currency": "SGD",
    "unit": "per litre",
    "value": 3.38,
    "measure": "average",
    "median": null,
    "typical_low": null,
    "typical_high": null,
    "min": null,
    "max": null
  },
  "sample_size": null,
  "period": {
    "from": "2026-09-01",
    "to": "2026-09-30"
  },
  "confidence": "high",
  "price_type": "official_statistic",
  "statistic": {
    "measure": "average",
    "reference_period": "2026-09",
    "note": "SingStat says petrol and diesel averages include the on-site and loyalty discounts widely available to consumers, so they can sit below the price on the board."
  },
  "as_of": "2026-10-30T09:46:30.714Z",
  "source": {
    "id": "sg-singstat-fuel",
    "name": "Average Retail Prices of Selected Consumer Items, Monthly: petrol, diesel and LPG (SingStat table M213761)",
    "publisher": "Department of Statistics Singapore (SingStat)",
    "licence": "Singapore Open Data Licence v1.0. SingStat's Terms of Use say that use of Datasets made available through its website (including the Table Builder) is subject to the Singapore Open Data Licence, which allows worldwide, perpetual, royalty-free use, commercially or non-commercially, with acknowledgement of the source and a link to the licence.",
    "licence_url": "https://data.gov.sg/open-data-licence",
    "attribution": "Contains information from Average Retail Prices of Selected Consumer Items (SingStat table M213761) accessed on the date in this answer's retrieved_at field from the Department of Statistics Singapore (SingStat), which is made available under the terms of the Singapore Open Data Licence version 1.0 https://data.gov.sg/open-data-licence . Figures are passed on as published; the changes on a month and a year earlier are calculated by ProofPrice. This is not an official SingStat product and SingStat does not endorse it.",
    "url": "https://tablebuilder.singstat.gov.sg/table/TS/M213761"
  },
  "method": "Singapore fuel: the Department of Statistics Singapore (SingStat) publishes each month the national average retail price of 92, 95 and 98 octane petrol, diesel (per litre) and LPG (per kilogram) in table M213761, from the prices it records for the Consumer Price Index; SingStat says the petrol and diesel averages include the on-site and loyalty discounts that are widely available. ProofPrice returns the published average for the newest month, unchanged, with the month before and the same month a year earlier. No range or sample size: SingStat gives one average. An official statistic for the whole country, not a station price.",
  "method_url": "https://proofprice.com/method",
  "summary": "The national average retail price of diesel in Singapore was S$3.38 per litre in September 2026 (Department of Statistics Singapore, Consumer Price Index price survey), up 1.8% on the month before (S$3.32 in August 2026) and up 50.9% on a year earlier (S$2.24 in September 2025). Official average published by Department of Statistics Singapore (SingStat) for 2026-09.",
  "notice": "Information, not a valuation or offer. Ranges describe past recorded prices.",
  "extra": {
    "country_name": "Singapore",
    "reference_month": "2026-09",
    "reference_month_label": "September 2026",
    "change_on_previous_month": {
      "from_month": "2026-08",
      "from_value": 3.32,
      "change_percent": 1.8,
      "change_amount": 0.06
    },
    "change_on_year_earlier": {
      "from_month": "2025-09",
      "from_value": 2.24,
      "change_percent": 50.9,
      "change_amount": 1.14
    },
    "other_fuels": {
      "petrol95": {
        "price_sgd": 2.92,
        "unit": "per litre",
        "definition": "95-octane petrol"
      },
      "petrol98": {
        "price_sgd": 3.44,
        "unit": "per litre",
        "definition": "98-octane petrol"
      },
      "lpg": {
        "price_sgd": 3.04,
        "unit": "per kg",
        "definition": "LPG"
      },
      "petrol92": {
        "price_sgd": 2.91,
        "unit": "per litre",
        "definition": "92-octane petrol"
      }
    },
    "singstat_label": "Diesel (Per Litre)",
    "dataset": {
      "code": "M213761",
      "title": "Average Retail Prices Of Selected Consumer Items, Monthly",
      "data_last_updated": "2026-10-23",
      "url": "https://tablebuilder.singstat.gov.sg/table/TS/M213761"
    }
  },
  "answer_id": "ans_487bbb7955cc22332dd0",
  "method_version": "1",
  "retrieved_at": "2026-10-30T09:46:30.714Z",
  "evidence": {
    "type": "official_statistic",
    "label": "Official published average",
    "meaning": "One average or median that a statistics office or regulator publishes for a reference period: it describes a group, not a distribution, and says nothing about any single price."
  },
  "reliability": "official_median_no_count",
  "data_as_of": "2026-09-30",
  "data_age_days": 30,
  "suggestions": [
    "This is one published figure (an average, median, index or listed price) with no record count: use it as a reference point, not as a range of what individuals paid.",
    "For a decision on a specific job or purchase, ask for an itemised quote."
  ]
}