Don't get pumped.
As of 19 July 2026, the cheapest unleaded petrol in Lock, SA is 188.9c per litre at Independent, Lock. Prices range from 188.9c to 188.9c across 1 stations, averaging 188.9c per litre.
Compare fuel prices from 1+ stations in Lock. Average: 188.9c/L
Last updated: 11:58 AM, 19 Jul 2026
Petrol prices in Lock currently range from 188.9c to 188.9c per litre for unleaded fuel, with motorists paying an average of 188.9c/L. We're tracking live prices from 1 service stations, which means you could save up to $0.00 on a 50L tank simply by choosing the right station. View all South Australia prices for broader comparisons.
Compare all fuel types in Lock: Unleaded (ULP) from 188.9c/L. Each fuel type page shows the cheapest stations in the area, helping you find the best deal whether you need regular unleaded, premium fuel, or diesel.
South Australian prices are typically lowest Monday to Wednesday. Avoid filling up on weekends when prices tend to be higher. Check our Best Time to Fill Up guide for detailed advice.
Prices for Lock are sourced from SA Fuel Pricing and community-verified reports, updating continuously throughout the day. Compare prices by brand or view our full station directory for more options.
South Australia shows moderate price cycling with mid-week peaks.
75% of stations suggest waiting might save you money
Distribution of stations across cycle phases in Lock
Based on historical price patterns in Lock, Monday tends to offer the best prices. Start of the week often brings lower prices as stations compete for customers.
| Rank | Station | Brand | Suburb | Price | Updated |
|---|---|---|---|---|---|
| Lock Deli | Independent | Lock | 188.9c | Today, 11:58am |
| Rank | Station | Brand | Suburb | Price | Updated |
|---|---|---|---|---|---|
| Perrys Lock | Perrys | Lock | 203.9c | Yesterday, 11:26am | |
| Perrys Lock (Unmanned) | Independent | Lock | 203.9c | Today, 11:58am | |
| Lock Deli | Independent | Lock | 223.9c | Today, 11:58am |
Find the best value by suburb - average unleaded petrol prices:
| Suburb | Stations | Average Price | Cheapest Price |
|---|
Save money at these stations with the lowest ULP prices. Prices shown for all available fuel types:
| Station | Address | Brand | ULP | E10 | Diesel | P95 | P98 | Updated |
|---|---|---|---|---|---|---|---|---|
| Lock Deli | 34 Railway Terrace | Independent | 188.9c | - | 223.9c | - | - | Today, 11:58am |
Avoid overpaying - these stations have the highest ULP prices:
| Station | Address | Brand | ULP | E10 | Diesel | P95 | P98 | Updated |
|---|---|---|---|---|---|---|---|---|
| Lock Deli | 34 Railway Terrace | Independent | 188.9c | - | 223.9c | - | - | Today, 11:58am |
Savings Tip: Price difference between cheapest (188.9c/L) and most expensive (188.9c/L): 0.0c per litre. On a 50L tank, choosing the cheapest station saves you $0.00!
Compare fuel prices in these nearby locations:
Lock has 1 petrol stations. Right now, ULP (unleaded petrol) prices in Lock range from 188.9c/L to 188.9c/L (a difference of 0.0c/L).
Real-time data updated continuously from official government sources and community reports. We track live prices from major fuel brands including Ampol, Shell, BP, 7-Eleven, Coles Express, and independent service stations. The current average price is 188.9c/L (last updated: 11:58 AM, 19 Jul 2026).
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