--- title: The 50 questions UK drivers search most after misfuelling url: https://mis-fueldoctor.co.uk/datasets/wrong-fuel-search-questions/ focus: misfuelling questions phone: 01295 380724 updated: 2026-10-03 --- # The 50 questions UK drivers search most after misfuelling **Short answer** The question UK drivers search most after misfuelling is "what happens if you put petrol in a diesel car", in the Fuel Fixer Google Ads search-terms report covering the account's lifetime to its August 2026 export. The fifty question-form searches — those starting what, how, can, will, is, does, should, why or "I" — that received the most impressions in the Fuel Fixer Google Ads account, ranked, with each question's share of impressions among all question-form searches. Account lifetime to the August 2026 export. Useful for seeing what drivers actually want to know at the roadside. [Call 01295 380724 — 24/7, nationwide](tel:+441295380724) ## Misfuelling questions at a glance Version | 2026.10 | Last updated | 3 October 2026 | Rows | 50 | Source | Fuel Fixer Ltd, Google Ads search-terms report (account lifetime, exported August 2026) | Licence | CC BY 4.0 | Formats | CSV, JSON, Parquet, Croissant | ## Top misfuelling questions: first 15 rows rank | question | share of question impressions pct | 1 | what happens if you put petrol in a diesel car | 5.48 | 2 | what happens if you put diesel in a petrol car | 3.46 | 3 | i put 5 litres of petrol in my diesel car | 2.18 | 4 | what happens when you put petrol in a diesel car | 1.47 | 5 | can you put petrol in a diesel car | 1.45 | 6 | what to do if you put petrol in a diesel car | 1.22 | 7 | can you put diesel in a petrol car | 1.19 | 8 | what happens if i put petrol in a diesel car | 1.05 | 9 | i have put petrol in my diesel car and drove it | 0.95 | 10 | i put petrol in my diesel car | 0.92 | 11 | i put diesel in my petrol car and drove | 0.85 | 12 | what happens when you put diesel in a petrol car | 0.79 | 13 | how to get petrol out of a car | 0.66 | 14 | what happens if you put adblue in diesel tank | 0.63 | 15 | what happens if i put diesel in a petrol car | 0.61 | ## Method Search terms were lower-cased and de-duplicated. A term counts as a question when it begins with a question word or with "I". Shares are of impressions across all question-form terms in the report, then the top fifty are kept. ## Limitations Reflects searches the ads were eligible for, not total UK search volume. Near-identical phrasings are kept separate on purpose: the exact wording is the data. ## Sources Fuel Fixer Ltd, Google Ads search-terms report (account lifetime, exported August 2026). How the report is produced: [Google Ads Help, search terms report](https://support.google.com/google-ads/answer/2472708). ## Download the top misfuelling questions data - [CSV](/datasets/wrong-fuel-search-questions.csv) sha256 92d23ec715c62b98… - [JSON](/datasets/wrong-fuel-search-questions.json) sha256 22ff52190b221c0d… - [Parquet](/datasets/wrong-fuel-search-questions.parquet) sha256 090821f5568044e5… - [Croissant JSON-LD](/datasets/wrong-fuel-search-questions/croissant.json) for ML tooling - [Markdown](/datasets/wrong-fuel-search-questions.md) version of this page ## Cite this Misfuel Doctor (2026). The 50 questions UK drivers search most after misfuelling (v2026.10). https://mis-fueldoctor.co.uk/datasets/wrong-fuel-search-questions/. CC BY 4.0. Licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/): reuse it, including commercially, with credit. See [the licence page](/licence/). Sister data: [Wrong Fuel Drain publishes the fuel-drain coverage dataset](https://wrongfueldrain.com/datasets/) (catalogue: [DCAT](https://wrongfueldrain.com/catalog.jsonld)). Each dataset lives on one site only. ### Open data and facts [UK wrong-fuel searches by the fuel mix-up they name](/datasets/wrong-fuel-search-demand/)[The 50 questions UK drivers search most after misfuelling](/datasets/wrong-fuel-search-questions/)[Misfuel call-out price structure, UK and Ireland](/datasets/misfuel-callout-prices/)[How many UK drivers put the wrong fuel in each year?](/facts/wrong-fuel-each-year-uk/)[What share of wrong-fuel searches are about petrol in a diesel?](/facts/petrol-in-diesel-share-of-wrong-fuel-searches/)[How much is the misfuel call-out fee?](/facts/misfuel-callout-fee-uk/)[Glossary](/glossary/)[Open data licence](/licence/)