Live Costco Fuel & Gas Prices in New Zealand
Track current per-litre prices at 1 Costco fuel station in New Zealand · diesel available
All prices in NZD per litre.
Costco fuel prices in New Zealand are among the lowest posted petrol prices in the country, and they change every day. Right now the Costco fuel price is $2.647 per litre for Unleaded 91, $2.837 for Premium 95, and $2.217 for diesel at the Costco Auckland (Westgate) station.
Costco fuel is well known for undercutting nearby stations, so it is worth checking before you fill up. Use the search box above to see the exact Costco gas price and station details, or scroll down for the full price breakdown and the 30-day price trend.
30-day New Zealand average price trend
The New Zealand Costco fuel station
Tap the station to see hours, services, and the full price breakdown.
| Station | Unleaded 91 | Premium 95 | Diesel |
|---|---|---|---|
Westgate | $2.647 | $2.837 | $2.217 |
Prices in NZD per litre.
How Costco keeps fuel prices low
Costco treats fuel as a membership perk, not a profit centre. By buying in bulk and running a high-volume station on slim margins, it can post a Costco fuel price that sits below most nearby petrol stations. Because members are already driving to the warehouse, cheap fuel keeps foot traffic — and membership renewals — high, so the savings are built into the business model rather than a temporary promotion.
In New Zealand you need a valid Costco membership to fill up, and the pump reads your card before dispensing. The trade-off is simple: you pay an annual membership fee, and in return you get a Costco fuel price that can save regular drivers well over that fee each year, plus the same quality petrol and diesel sold at major brands.
How we track Costco fuel prices?
We check the Costco fuel price daily and refresh Unleaded 91, Premium 95, and diesel for the Auckland (Westgate) station, alongside a 30-day trend so you can see which way prices are heading. Numbers are gathered from publicly available sources and are meant as a guide — the price posted at the pump is always the price you pay. This site is independent and is not affiliated with, endorsed by, or sponsored by Costco Wholesale Corporation.