Brandwave

How popular isCastrol in search?

In August 2026, there were an estimated 4.8K branded searches for Castrol in New Zealand which is up 18% over the last 11 months. Castrol holds 33.7% estimated Share of Search among New Zealand motor oil brands and is ranked 2nd of 6 competitors for search popularity.

Share of Search, August 2026
  1. Penrite43%
  2. Castrol33.7%
  3. Valvoline10.2%
  4. Mobil 17.1%
  5. Nulon5%
  6. Shell Helix1.1%
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Which motor oil brands compete with Castrol?

Castrol against motor oil brands in New Zealand, by month

Share of Search by month for Penrite, Castrol, Valvoline, Mobil 1, Nulon. The figures are in the table below the chart.

View monthly share of search table
MonthPenriteCastrolValvolineMobil 1NulonShell Helix
Oct 202547.1%31.1%10.3%4.9%5.8%0.77%
Nov 202541.2%34.9%11.7%5.8%5.3%1.1%
Dec 202543.7%34.3%11.2%5.1%4.5%1.2%
Jan 202642.5%34.2%11.5%4.9%5.4%1.5%
Feb 202640.6%33.1%12.7%7.9%4.5%1.1%
Mar 202637.5%34.5%12.3%11%3.5%1.2%
Apr 202644.8%29.8%11.6%9.8%3.2%0.96%
May 202637.1%30.9%10.7%16.2%4.2%0.94%
Jun 202635.1%32.4%10.6%17.5%3.3%0.98%
Jul 202639.6%32.3%10.7%11.2%5.2%0.98%
Aug 202643%33.7%10.2%7.1%5%1.1%
Sep 2026——————

  1. 1.Penrite

    43%

    held 1st · 6.1K estimated branded searches · +7.2% vs prior month · +3.4 points

  2. 2.Castrol

    33.7%

    held 2nd · 4.8K estimated branded searches · +3.2% vs prior month · +1.4 points

  3. 3.Valvoline

    10.2%

    moved from 4th to 3rd · 1.4K estimated branded searches · -5.9% vs prior month · -0.5 points

  4. 4.Mobil 1

    7.1%

    moved from 3rd to 4th · 1K estimated branded searches · -37.9% vs prior month · -4.2 points

  5. 5.Nulon

    5%

    held 5th · 710 estimated branded searches · -5.3% vs prior month · -0.2 points

  6. 6.Shell Helix

    1.1%

    held 6th · 150 estimated branded searches · +7.1% vs prior month · +0.1 points

Compare search popularity between Castrol and its closest rivals

How has branded search demand for Castrol changed in New Zealand over the last 12 months?

  • Across the 11 months ending August 2026, estimated monthly branded searches for Castrol in New Zealand rose from 4K to 4.8K.
  • Across the 11 months ending August 2026, Castrol’s estimated Share of Search among motor oil brands in New Zealand increased from 31.1% to 33.7%.
  • Across the 11 months ending August 2026, Castrol’s estimated Share of Search among motor oil brands in New Zealand peaked at 34.9% in November 2025 and was lowest at 29.8% in April 2026.

How did search popularity change for New Zealand motor oil brands in August 2026?

  1. In August 2026, Penrite gained estimated Share of Search among motor oil brands in New Zealand, from 39.6% to 43%.

  2. In August 2026, Castrol gained estimated Share of Search among motor oil brands in New Zealand, from 32.3% to 33.7%.

  3. In August 2026, Mobil 1 lost estimated Share of Search among motor oil brands in New Zealand, from 11.2% to 7.1%.

  4. In August 2026, Valvoline lost estimated Share of Search among motor oil brands in New Zealand, from 10.7% to 10.2%.

  5. Estimated monthly branded searches for Shell Helix in New Zealand rose 50% over 11 measured months, from 100 to 150 in August 2026.

How is Castrol measured?

Brandwave collects information about searches that people make online using Castrol’s name. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brand is growing, holding steady, or fading.

21 branded search terms

  • castrol
  • castrol 0 20w
  • castrol 10w40
  • castrol 5w30
  • castrol 5w40
  • castrol com
  • castrol edge
  • castrol edge 5 40
  • castrol edge 5w30
  • castrol edge engine oil 5w 30
  • castrol edge motor oil
  • castrol engine oil
  • castrol magnatec 10w40
  • castrol magnatec 5w30
  • castrol motor oil
  • castrol motor oil 5w30
  • castrol near me
  • castrol new zealand
  • castrol nz
  • castrol oil
  • castrol online

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How the Brand Demand Index is measured

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