[4] Sufficient fuel was carried to give a range of 4,800 nautical miles (8,900 km; 5,500 mi) at 15 knots (28 km/h; 17 mph) in tropical waters.

Two Squid anti-submarine mortars were fitted, with 120 rounds carried, backed up by 15 conventional depth charges.

[4] Loch Alvie underwent significant modification when under refit from 1952 to 1954, with the ship's gun armament being heavily revised.

The 4-inch gun was replaced by a twin Mk XVI 4-inch dual-purpose mount, while the close-in anti-aircraft armament was replaced by an outfit of six Bofors 40 mm guns (1 twin and 4 single mounts), while communications equipment was also upgraded.

[12] Later Loch Alvie joined Task Group 122.3 for anti-submarine operations and support duties in the South-Western Approaches and Irish Sea while based at Milford Haven.

In April 1961, when the passenger liner Dara suffered an explosion, Loch Alvie took part in attempts to stop the resulting fires and salvage the ship.

During 1964 she was stripped of equipment, and the hulk sold to Hong Huat Hardware, Singapore, for scrapping on 20 September 1965.