---
title: "Castrol vs Pennzoil: Which is more popular by branded search?"
description: "Which is more popular in search, Castrol or Pennzoil? Compare estimated monthly branded-search demand and Share of Search inside the Motor oil brands set worldwide. 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/global-en/compare/castrol-vs-pennzoil"
publisher: "Brandwave"
---

# Castrol vs Pennzoil: Which is more popular by branded search?

Which is more popular in search, Castrol or Pennzoil? Compare estimated monthly branded-search demand and Share of Search inside the Motor oil brands set worldwide. 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 Pennzoil
- **Competitive set**: Motor oil brands
- **Market**: Global
- **Month measured**: Aug 2026
- **Castrol Share of Search**: 4.5%
- **Pennzoil Share of Search**: 0.91%

## Which is more popular in search, Castrol or Pennzoil?

- In August 2026, Castrol had more branded searches than Pennzoil among motor oil brands worldwide. Castrol was estimated to have 246K branded searches compared to Pennzoil’s 49.5K, and held a 4.5% Share of Search versus Pennzoil’s 0.91%.
- Castrol was ahead of Pennzoil 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 worldwide moved from 4.4% to 4.5%, and its estimated monthly branded searches held steady at 246K.
- Across the 11 months ending August 2026, Pennzoil’s estimated Share of Search among motor oil brands worldwide moved from 0.88% to 0.91%, and its estimated monthly branded searches held steady at 49.5K.

## How did search popularity change for motor oil brands worldwide in August 2026?

Neither Castrol nor Pennzoil moved beyond provider rounding among motor oil brands in Aug 2026.

## Month by month

| Month | Castrol estimated searches | Castrol Share of Search | Castrol rank | Pennzoil estimated searches | Pennzoil Share of Search | Pennzoil rank |
| --- | --- | --- | --- | --- | --- | --- |
| Oct 2025 | 246K | 4.4% | 4 | 49.5K | 0.88% | 5 |
| Nov 2025 | 246K | 5.1% | 4 | 49.5K | 1% | 5 |
| Dec 2025 | 246K | 5.3% | 4 | 49.5K | 1.1% | 5 |
| Jan 2026 | 246K | 5.1% | 4 | 60.5K | 1.3% | 5 |
| Feb 2026 | 246K | 5.9% | 4 | 49.5K | 1.2% | 5 |
| Mar 2026 | 246K | 4.4% | 4 | 60.5K | 1.1% | 5 |
| Apr 2026 | 246K | 5.1% | 4 | 49.5K | 1% | 5 |
| May 2026 | 246K | 4.5% | 4 | 49.5K | 0.91% | 5 |
| Jun 2026 | 246K | 4.7% | 4 | 49.5K | 0.94% | 5 |
| Jul 2026 | 246K | 4.7% | 4 | 49.5K | 0.94% | 5 |
| Aug 2026 | 246K | 4.5% | 4 | 49.5K | 0.91% | 5 |
| Sep 2026 | — | — | — | — | — | — |

## How each brand is measured

Brandwave collects information about searches that people make online using Castrol’s and Pennzoil’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 term “castrol”.
- **Pennzoil**: Measured on the search term “pennzoil”.

- [Castrol profile](/demand/global-en/brands/castrol)
- [Pennzoil profile](/demand/global-en/brands/pennzoil)
- [All motor oil brands worldwide](/demand/global-en/categories/motor-oil-brands): The set both shares are measured inside, 7 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 Pennzoil?

In August 2026, Castrol had more branded searches than Pennzoil among motor oil brands worldwide. Castrol was estimated to have 246K branded searches compared to Pennzoil’s 49.5K, and held a 4.5% Share of Search versus Pennzoil’s 0.91%.

## Cite this page

Brandwave. "Castrol vs Pennzoil: Which is more popular by branded search?". https://gobrandwave.com/demand/global-en/compare/castrol-vs-pennzoil

This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/castrol-vs-pennzoil. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.