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⚡ Sale ends 11:59pm 30 June 2026 — get your deals in before EOFY!

Look after your vehicle and claim it back this EOFY. Big savings across our best-selling diesel, petrol, truck & marine treatments — Aussie-made, satisfaction guaranteed.

Diesel Savings

+ Free CleanpowerEngine Blowby Kit plus FREE Cleanpower
Engine Blowby

Engine Blowby Kit + FREE Cleanpower

From $240$305
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Save $88FTC Special Offer 2 Litre FTC Decarbonizer
FTC Decarbonizer

FTC Special Offer

$239$329
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Value PackFlushing Oil Concentrate & CRD Fuel Enhancer Value Pack
Diesel Value Pack

Flushing Oil Concentrate & CRD Fuel Enhancer Value Pack

$135$174
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EOFY DealEngine Stop Smoke Additive Pack Diesel
Stop Exhaust Smoke

Engine Stop Smoke Additive Pack — Diesel

$269$309
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Save up to $193Ultimate Diesel Pack
Diesel Value Pack

Ultimate Diesel Pack

$379$456
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Save $24Dirty Diesel Kit
Diesel Additives

Dirty Diesel Kit

$170$194
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Cooling System Savings

15% OffRMI-25 Cooling System Treatment 1 Litre
Cooling & Overheating

RMI-25 Cooling System Treatment — 1 Litre

$84.15$99
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15% OffRMI-25 Cooling System Treatment 5 Litre
Cooling & Overheating

RMI-25 Cooling System Treatment — 5 Litre

$279.65$329
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15% OffRMI-25 Cooling System Treatment 20 Litre
Cooling & Overheating

RMI-25 Cooling System Treatment — 20 Litre

$892.50$1050
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Bulk Savings

Bulk DealCEM Premium Diesel Treatment
Bulk Fuel Storage

Premium Diesel Treatment

From $799
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Bulk DealCEM Marine Diesel Fuel Stabilizer
Marine Additives

Marine Diesel Fuel Stabilizer

From $349
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Bulk DealCost Effective 20 Litre Group
Bulk Fuel Storage

20L Variant Savings

From $697
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Petrol Savings

Save up to $188Ultimate Petrol Pack
Petrol Value Pack

Ultimate Petrol Pack

$385$464.95
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EOFY DealStop Smoke Pack Petrol
Stop Exhaust Smoke

Stop Smoke Pack — Petrol

$265$317.95
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Value PackFlushing Oil Concentrate & Cleanpower Value Pack
Petrol & Diesel

Flushing Oil Concentrate & Cleanpower Value Pack

$130$170
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Value PackPetrol Performance Pack
Petrol Value Pack

Petrol Performance Pack

$262$300
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More Savings

20% OffXTROLL Chassis Guard 1L Spray
Stop Rust

XTROLL Chassis Guard

From $63.96
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10% OffDirections Plus Catch Can Kits
Oil Catch Cans

Directions Plus Catch Can Kits

10% Off
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10% OffWestern Filters Catch Can Kits
Oil Catch Cans

Western Filters Catch Can Kits

10% Off
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Can't find the deal you're after?

Contact the team at Cost Effective Maintenance and we'll get you a great deal this EOFY.

📞 (07) 3376 6188

Free shipping Australia-wide • Next-day dispatch • Satisfaction guaranteed • Aussie-made