Suburb fuel prices

Cheap Petrol & Diesel in Lock South Australia 5633

43.4c above the South Australia averagePrices here track the Adelaide cycle — check the 7-day outlook below before you decide.

Prices as of 9 min ago AEST · sourced from SA Fuel Pricing Information Scheme

Lock · Unleaded 91Above the state avg

WAIT

Unleaded 91 in Lock is dearer than the South Australia average

Lock sits 43.4c above the South Australia average. Prices here track the Adelaide cycle — check the 7-day outlook below before you decide.

How it compares

  • South Australia state avg163c/L+43.4c/L
  • National avg165.5c/L+40.9c/L
  • Wholesale (TGP)154.1c/L+52.3c/L

Top stations

Cheapest Unleaded 91 stations in Lock

Sorted by current Unleaded 91 price. Tap a station for grades, directions and price age.

  1. Lock Deli

    Lock Deli

    Cheapest

    0.3 km away · 34 Railway Terrace

    188.9 c/L

    -17.5 vs avg

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7-day outlook

Lock 7-day Unleaded 91 outlook

Rising · +7.7c/L over 7 days

Lock prices follow the Adelaide cycle, so this outlook takes the Adelaide Unleaded 91 forecast and adjusts it to Lock's own price level using 90 days of local history. You can see the Adelaide benchmark alongside the local estimate below.

Adelaide is in the stable phase of its current cycle.

Lock today (est.)

190.0c/L

Adelaide 151.7c/L · +38.3c/L local

Predicted in 7 days

195.1c/L

7-day range

183.5 – 200.6c/L

183.0192.5202.0ThuFriSatSunMonTueWed
Predicted price90% confidence band

Nearby suburbs

Suburbs near Lock

How Lock compares to neighbouring areas — cheapest first, delta vs the Lock average.

  1. Bo
    BoonerdoCheapest

    188.9c

    -17.5vs Lock
  2. Ul
    Ulyerra

    188.9c

    -17.5vs Lock
  3. Lo
    LockYou

    206.4c

    0.0vs Lock

At a glance

Lock fuel prices at a glance

Cheapest Unleaded 91
188.9 c/L
Suburb average
206.4 c/L
Price range
35.0c spread
Station tracked
1
Brand
1
Postcode
5633
Last updated
25 June 2026, 3:07 am AEST

Explore the area

Browse fuel prices around Lock

Step up to the city and state, compare neighbouring suburbs, or open the live Unleaded 91 map.

Lock snapshot

Live Unleaded 91 prices in Lock

How it compares

Lock is currently 43.4c above the South Australia state average of 163.0c. Open the live fuel map to see how individual stations spread within Lock.

Compare neighbouring suburbs

Cheaper fuel may be nearby — compare Boonerdo (from 188.9c) or Ulyerra (from 188.9c) before planning a fill-up.

Brands operating here

1 fuel brand operate stations in Lock, including Independent. Brand loyalty programs and discount apps can shift the cheapest pump by 4–6c/L on any given day.

Frequently asked

Lock fuel questions

The cheapest U91 in Lock is currently at Lock Deli for 188.9 c/L.

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