--- title: "Castrol vs Nulon: Which is more popular by branded search in New Zealand?" description: "Which is more popular in search, Castrol or Nulon? Compare estimated monthly branded-search demand and Share of Search inside the Motor oil brands set in New Zealand. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/nz/compare/castrol-vs-nulon" publisher: "Brandwave" --- # Castrol vs Nulon: Which is more popular by branded search in New Zealand? Which is more popular in search, Castrol or Nulon? Compare estimated monthly branded-search demand and Share of Search inside the Motor oil brands set in New Zealand. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Castrol and Nulon - **Competitive set**: Motor oil brands - **Market**: New Zealand - **Month measured**: Aug 2026 - **Castrol Share of Search**: 33.7% - **Nulon Share of Search**: 5% ## Which is more popular in search, Castrol or Nulon? - In August 2026, Castrol had more branded searches than Nulon among motor oil brands in New Zealand. Castrol was estimated to have 4.8K branded searches compared to Nulon’s 710, and held a 33.7% Share of Search versus Nulon’s 5%. - Castrol was ahead of Nulon in every measured month of the 11 months ending August 2026. - Across the 11 months ending August 2026, Castrol’s estimated Share of Search among motor oil brands in New Zealand moved from 31.1% to 33.7%, and its estimated monthly branded searches moved from 4K to 4.8K. - Across the 11 months ending August 2026, Nulon’s estimated Share of Search among motor oil brands in New Zealand moved from 5.8% to 5%, and its estimated monthly branded searches moved from 760 to 710. ## How did search popularity change for New Zealand motor oil brands in August 2026? - In August 2026, Castrol gained estimated Share of Search among motor oil brands in New Zealand, from 32.3% to 33.7%. ## Month by month | Month | Castrol estimated searches | Castrol Share of Search | Castrol rank | Nulon estimated searches | Nulon Share of Search | Nulon rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 4K | 31.1% | 2 | 760 | 5.8% | 4 | | Nov 2025 | 4.5K | 34.9% | 2 | 690 | 5.3% | 5 | | Dec 2025 | 4.2K | 34.3% | 2 | 550 | 4.5% | 5 | | Jan 2026 | 4.1K | 34.2% | 2 | 650 | 5.4% | 4 | | Feb 2026 | 4.1K | 33.1% | 2 | 560 | 4.5% | 5 | | Mar 2026 | 5K | 34.5% | 2 | 510 | 3.5% | 5 | | Apr 2026 | 4.3K | 29.8% | 2 | 460 | 3.2% | 5 | | May 2026 | 4.6K | 30.9% | 2 | 630 | 4.2% | 5 | | Jun 2026 | 5K | 32.4% | 2 | 510 | 3.3% | 5 | | Jul 2026 | 4.6K | 32.3% | 2 | 750 | 5.2% | 5 | | Aug 2026 | 4.8K | 33.7% | 2 | 710 | 5% | 5 | | Sep 2026 | — | — | — | — | — | — | ## How each brand is measured Brandwave collects information about searches that people make online using Castrol’s and Nulon’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading. - **Castrol**: Measured on the 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” and “castrol online”, summed into one figure. - **Nulon**: Measured on the search terms “coolant nulon”, “nulon”, “nulon 5w30”, “nulon com au”, “nulon diesel injector cleaner”, “nulon full synthetic 5w 30”, “nulon injector cleaner”, “nulon motor oil”, “nulon near me”, “nulon nz” and “nulon oil”, summed into one figure. - [Castrol profile](/demand/nz/brands/castrol) - [Nulon profile](/demand/nz/brands/nulon) - [All motor oil brands in New Zealand](/demand/nz/categories/nz-motor-oil-brands): The set both shares are measured inside, 6 brands. ## Methodology - [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Which is more popular in search, Castrol or Nulon? In August 2026, Castrol had more branded searches than Nulon among motor oil brands in New Zealand. Castrol was estimated to have 4.8K branded searches compared to Nulon’s 710, and held a 33.7% Share of Search versus Nulon’s 5%. ## Cite this page Brandwave. "Castrol vs Nulon: Which is more popular by branded search in New Zealand?". https://gobrandwave.com/demand/nz/compare/castrol-vs-nulon This page is also available as HTML at https://gobrandwave.com/demand/nz/compare/castrol-vs-nulon. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.