--- title: "Castrol vs Shell Helix: Which is more popular by branded search in New Zealand?" description: "Which is more popular in search, Castrol or Shell Helix? 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-shell-helix" publisher: "Brandwave" --- # Castrol vs Shell Helix: Which is more popular by branded search in New Zealand? Which is more popular in search, Castrol or Shell Helix? 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 Shell Helix - **Competitive set**: Motor oil brands - **Market**: New Zealand - **Month measured**: Aug 2026 - **Castrol Share of Search**: 33.7% - **Shell Helix Share of Search**: 1.1% ## Which is more popular in search, Castrol or Shell Helix? - In August 2026, Castrol had more branded searches than Shell Helix among motor oil brands in New Zealand. Castrol was estimated to have 4.8K branded searches compared to Shell Helix’s 150, and held a 33.7% Share of Search versus Shell Helix’s 1.1%. - Castrol was ahead of Shell Helix 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, Shell Helix’s estimated Share of Search among motor oil brands in New Zealand moved from 0.77% to 1.1%, and its estimated monthly branded searches moved from 100 to 150. ## 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%. - Estimated monthly branded searches for Shell Helix in New Zealand rose 50% over 11 measured months, from 100 to 150 in August 2026. ## Month by month | Month | Castrol estimated searches | Castrol Share of Search | Castrol rank | Shell Helix estimated searches | Shell Helix Share of Search | Shell Helix rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 4K | 31.1% | 2 | 100 | 0.77% | 6 | | Nov 2025 | 4.5K | 34.9% | 2 | 140 | 1.1% | 6 | | Dec 2025 | 4.2K | 34.3% | 2 | 150 | 1.2% | 6 | | Jan 2026 | 4.1K | 34.2% | 2 | 180 | 1.5% | 6 | | Feb 2026 | 4.1K | 33.1% | 2 | 130 | 1.1% | 6 | | Mar 2026 | 5K | 34.5% | 2 | 180 | 1.2% | 6 | | Apr 2026 | 4.3K | 29.8% | 2 | 140 | 0.96% | 6 | | May 2026 | 4.6K | 30.9% | 2 | 140 | 0.94% | 6 | | Jun 2026 | 5K | 32.4% | 2 | 150 | 0.98% | 6 | | Jul 2026 | 4.6K | 32.3% | 2 | 140 | 0.98% | 6 | | Aug 2026 | 4.8K | 33.7% | 2 | 150 | 1.1% | 6 | | Sep 2026 | — | — | — | — | — | — | ## How each brand is measured Brandwave collects information about searches that people make online using Castrol’s and Shell Helix’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. - **Shell Helix**: Measured on the search terms “5w30 shell helix ultra”, “shell engine oil”, “shell helix”, “shell helix 5w40 ultra” and “shell helix oil”, summed into one figure. - [Castrol profile](/demand/nz/brands/castrol) - [Shell Helix profile](/demand/nz/brands/shell-helix) - [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 Shell Helix? In August 2026, Castrol had more branded searches than Shell Helix among motor oil brands in New Zealand. Castrol was estimated to have 4.8K branded searches compared to Shell Helix’s 150, and held a 33.7% Share of Search versus Shell Helix’s 1.1%. ## Cite this page Brandwave. "Castrol vs Shell Helix: Which is more popular by branded search in New Zealand?". https://gobrandwave.com/demand/nz/compare/castrol-vs-shell-helix This page is also available as HTML at https://gobrandwave.com/demand/nz/compare/castrol-vs-shell-helix. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.