^ZULU Code The Wikipedia of Ship Machinery
^Z S E M M

^E

FO / LO

Zulu Code System

Description

Oil purification and fuel treatment systems. Covers fuel oil purifiers, lubricating oil purifiers, fuel oil service systems, and associated heaters and settling tanks critical for engine fuel quality and lubrication.

Oil treatment and management — fuel oil, lube oil, hydraulic oil purification, filtering, storage

Also known as: fuel oil, lubrication, oil system, fuel treatment, purifier, fuel management, bunker system, lube oil, hydraulic oil, oil side, fuel system

Equipment types (6)

Recent spare-part price references

Recorded spare-part prices for individual items in this system, each banded ±25%. These are specific items — NOT a per-model figure. See an individual model's page for a precise band.

ItemPrice bandDate
OIL DISCHARGE MONITORING EQUPMENT ANNUAL SERVICE $937.50 – $1,563 Apr 2, 2026

Recent dry-dock cost references

Recorded dry-dock/repair labor line items for this system. These are LABOR costs, not spare-part prices, and vary widely by task — shown individually rather than averaged.

ItemCost bandDate
HFO purifier supply P/P, 4KW $217.50 – $362.50 Jul 10, 2015
Fuel oil tanks' normal cleaning $9.00 – $15.00 Jul 10, 2015
purifier room fan - 3.7KW $196.88 – $328.13 Jul 10, 2015
G/E F.O Supply P/P, 2.2KW $157.50 – $262.50 Jul 10, 2015
HFO Purifier, 14.5KW $316.50 – $527.50 Jul 10, 2015

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Code map

^E
 ── System: FO / LO