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Live Fuel Prices at OTR St Marys, St Marys

●1181 South Rd
Open 24 hours
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Prices last updated: 11:00 PM, 15 Oct 2026

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Current Fuel Prices

OTR St Marys is currently offering Unleaded Petrol at 225.9c/L, making it a competitive option for motorists in St Marys. This OTR station offers 3 fuel types with prices ranging from 225.9c to 248.9c per litre. Available fuel types: Unleaded Petrol (225.9c/L), Premium Unleaded 95 (243.4c/L), Premium Unleaded 98 (248.9c/L).

PetrolSMART Check Price

Prices are higher than usual, in the top 1% of the 30-day range. • Ranked #2 of 2 cheapest in St Marys

Station Information

Located at 1181 South Rd, this OTR station serves the St Marys area in SA. Compare prices with other stations in St Marys to ensure you're getting the best deal, or view all OTR stations across SA.

Compare Nearby Stations

Finding the cheapest fuel in St Marys? Compare this station's prices with all OTR and competitor stations in the area. View all St Marys fuel prices or browse statewide prices across SA. Use our Best Time to Fill Up guide to maximise your savings.

Data Sources

Prices are sourced from SA Fuel Pricing, updated several times a day. Compare prices by brand or use our Savings Calculator to see how much you could save.

Current Fuel Prices

Unleaded Petrol
225.9
15 Oct, 11:00pm
Premium Unleaded 95
243.4
15 Oct, 11:00pm
Premium Unleaded 98
248.9
15 Oct, 11:00pm
PetrolSMART Price Intelligence
Current recommendation for this station:
Fill Up Now Good Value Fair Price Wait if You Can Check Price
  • Price is in the top 1% of 30-day range
  • Prices trending upward from trough

Price Cycle Position

Where this station sits in the typical weekly price cycle

Next Low
~6d
until trough
Low
Rising
High
Falling
Current
RISING
Confidence
70%
accuracy
Typical cycle length: 7 days
Prices Are Climbing

Prices are rising from their low point toward the peak. Consider filling up soon to avoid paying more as prices continue to climb.

7-Day Forecast
234.4¢/L (-1.5)
Prices are in a rising phase of the cycle with minor fluctuations (-1.5c). Consider filling up soon before prices climb higher.
#2 of 2 cheapest +2.3c vs avg

Price Trends (21 Jul - 15 Oct 2026) - All Fuel Types

Fuel Types

Price Statistics & Insights (90-Day Analysis)

Premium Unleaded 95

90-Day Low
193.4c
90-Day High
253.4c
Average
225.8c
Price Range
60.0c
Volatility
16.6c
Price Changes
52/80 days
Volatile pricing - Prices change frequently. Check often to catch the best deals.
Frequent updates - Prices changed 52 times in 80 days. Monitor regularly for savings.

Premium Unleaded 98

90-Day Low
202.9c
90-Day High
261.9c
Average
234.8c
Price Range
59.0c
Volatility
16.0c
Price Changes
52/80 days
Volatile pricing - Prices change frequently. Check often to catch the best deals.
Frequent updates - Prices changed 52 times in 80 days. Monitor regularly for savings.

Unleaded Petrol

90-Day Low
175.9c
90-Day High
235.9c
Average
208.6c
Price Range
60.0c
Volatility
16.4c
Price Changes
52/80 days
Volatile pricing - Prices change frequently. Check often to catch the best deals.
Frequent updates - Prices changed 52 times in 80 days. Monitor regularly for savings.
7-day trend: Stable
Current price is in the top 20% of the 90-day range. Prices are higher than usual right now.
High volatility alert: Prices have swung 60.0c in the last 90 days. Timing your fill wisely could save you 18.0c/L or more.

Premium Diesel

90-Day Low
218.9c
90-Day High
292.9c
Average
257.0c
Price Range
74.0c
Volatility
19.7c
Price Changes
45/71 days
Volatile pricing - Prices change frequently. Check often to catch the best deals.
Frequent updates - Prices changed 45 times in 71 days. Monitor regularly for savings.

LPG/Autogas

90-Day Low
98.9c
90-Day High
99.9c
Average
99.9c
Price Range
1.0c
Volatility
0.2c
Price Changes
2/57 days
Stable pricing - This station rarely changes prices, making it predictable for budgeting.
Consistent pricing - Only 2 price changes in 57 days. Very stable.

Best Time to Fill Up at This Station

This station shows a moderate price cycle with 4.0c/L variation.

Fill soon! Prices are rising from the trough. The sooner you fill up, the more you'll save as prices continue to climb.
7-day forecast: 234.4¢ (-1.5 from today)
Best Day
Sunday
Avg 206.8c/L
Worst Day
Tuesday
Avg 210.8c/L
Potential Savings
4.0c/L
Up to $2.00/50L tank
Weekly Price Pattern (90 Day Analysis)
Sun
206.8c
Best
Mon
210.2c
Tue
210.8c
Avoid
Wed
208.9c
Thu
208.6c
Fri
209.2c
Sat
208.5c
Fill up on Sunday to save up to 4.0c/L compared to Tuesday.
Drivers who fill on Sunday instead of Tuesday save an average of 4.0c/L. That's up to $2.00 per 50L tank!

Based on 79 price observations over 90 days. Pattern strength: moderate

● Compare Nearby Stations (Within 5km)

Station Brand Suburb Distance ULP Price Difference
U-Go St Marys U-Go St Marys 0.4 km 220.9c 5.0c cheaper
Ampol Foodary Edwardstown Ampol Edwardstown 1.7 km 222.9c 3.0c cheaper
X Convenience Panorama X Convenience Panorama 1.6 km 228.9c 3.0c more
Ampol Foodary Westbourne Park Ampol Westbourne Park 3.0 km 228.9c 3.0c more
Ampol Foodary Cumberland Park Ampol Cumberland Park 3.5 km 228.9c 3.0c more
X Convenience Cross Road X Convenience Cross 3.5 km 229.5c 3.6c more
X Convenience Plympton X Convenience Plympton 4.1 km 229.5c 3.6c more
Ampol Foodary Glenelg North Ampol Glenelg North 5.0 km 230.9c 5.0c more
Caltex Park Holme Caltex Park Holme 2.4 km 235.9c 10.0c more
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About OTR St Marys

OTR St Marys is a OTR service station located in St Marys, SA. Petrolmate monitors this station and updates prices multiple times daily from official government fuel price schemes.

This station is part of the Petrolmate network covering SA, helping drivers find the cheapest petrol prices in St Marys and surrounding areas. Compare prices from OTR St Marys with nearby stations to ensure you're getting the best value for your fuel.

More fuel resources for St Marys drivers