AutoCave stocks the genuine LIQUI MOLY additive range in Australia: Cera Tec, MoS2 Friction Reducer, Diesel Clean & Boost, DPF Anti-Clog, petrol and diesel injector cleaners, engine flushes, oil leak stoppers and the Pro-Line workshop range. Every line is price-checked against the major Australian retailers and ships Australia-wide from Sydney.
Which LIQUI MOLY additive do I need?
Start with the problem you want to fix. This table matches common symptoms to the right LIQUI MOLY product and its official dosage.
| Problem | LIQUI MOLY product | How it is used |
|---|---|---|
| Clean petrol injectors, rough idle, hard starting | Petrol Injection Cleaner 2786 | 300 ml treats up to 70 L of petrol |
| Full petrol fuel system clean | Petrol Clean & Boost 7714 | Add to the tank |
| Clean diesel injectors and keep them clean | Diesel Clean & Boost 2769 | 25 ml per 10 L of diesel, every fill |
| Diesel injector clean plus higher cetane | Diesel Injection Cleaner with Anti-Knock 2789 | 250 ml per 75 L, every 2,000 km |
| Stop a diesel particulate filter (DPF) clogging | DPF Anti-Clog 2729 | One can every 2,000 km |
| Long-term engine wear protection | Cera Tec 21676 | 300 ml per 5 L oil, lasts around 50,000 km |
| Towing, high loads, friction and heat | MoS2 Friction Reducer 2781 | Add to engine oil, best with fresh oil |
| Oil leaks and oil spots under the car | Engine Oil Resealer 2782 | 300 ml per 5 L oil, seals after 600 to 800 km |
| Engine burning oil, low compression | Viscoplus for Oil 21695 | 300 ml per 5 L oil |
| Ticking hydraulic lifters (tappets) | Tappet Stop Noise 2783 | 300 ml per up to 6 L oil |
| Sludge, before an oil change | Engine Flush Plus 2784 | Idle 10 min, then change oil and filter |
| Carbon on petrol intake and throttle | Petrol Engine Intake Decarb 2733 | Spray into intake, engine running |
| Carbon in a diesel intake (EGR soot) | Diesel Engine Intake Decarb 3029 | Spray into intake, engine running |
| Hesitation from a dirty air flow sensor | Air Flow Sensor Cleaner 7085 | Spray onto the sensor |
| Harsh shifts or leaks, auto transmission or power steering | ATF Additive 2702 | 250 ml treats up to 8 L of ATF |
| Hybrid cars that sit on electric power a lot | Hybrid Additive 21697 | Add to the petrol tank |
| Cooling system scale and sludge | Pro-Line Radiator Cleaner 5189 | Add to coolant, flush |
Diesel additives for 4WDs, utes and trucks
Common-rail diesels like the Toyota HiLux, Ford Ranger, Isuzu D-Max and LandCruiser are hard on injectors and diesel particulate filters, especially on short trips. Diesel Clean & Boost keeps the injection system clean at every fill, DPF Anti-Clog slows particulate build-up, and the Pro-Line and Truck Series products cover workshops and fleets.
Petrol additives
For petrol engines, Injection Cleaner treats up to 70 litres and works for up to 2,000 km, Petrol Clean & Boost cleans the whole fuel system, and Petrol Engine Intake Decarb removes carbon from the throttle and intake.
Engine oil additives
Cera Tec gives ceramic wear protection for around 50,000 km, MoS2 Friction Reducer suits towing and high loads, Engine Oil Resealer targets leaks from hardened seals, and Engine Flush Plus cleans out sludge before an oil change.
Frequently asked questions
Which LIQUI MOLY additive is best for diesel injectors?
For regular cleaning, LIQUI MOLY Diesel Clean & Boost (2769) is dosed at 25 ml per 10 litres of diesel every time you fill up. Diesel Injection Cleaner with Anti-Knock (2789) is a single 250 ml can for up to 75 litres, used every 2,000 km, and it also raises the cetane number. Both suit common-rail diesels with or without a DPF.
What is the difference between LIQUI MOLY Cera Tec and MoS2 Friction Reducer?
Both reduce friction and wear in engine oil. Cera Tec (21676) uses ceramic compounds, treats up to 5 litres of oil and lasts around 50,000 km. MoS2 Friction Reducer (2781) uses molybdenum disulfide and is recommended for high-load driving such as towing, continuous high speeds or regular full-throttle acceleration. Cera Tec is not suitable for use with wet clutches.
Does LIQUI MOLY DPF Anti-Clog work?
LIQUI MOLY Diesel Particulate Filter Anti-Clog (2729) reduces the build-up of particulates so the filter stays cleaner for longer, which matters most for diesels doing short trips and city driving. Add one can before filling up every 2,000 km. It is not for vehicles with a factory additive tank for DPF regeneration, such as some Peugeot and Citroen models.
Are LIQUI MOLY additives safe for turbos and catalytic converters?
LIQUI MOLY states its fuel and oil additives such as Injection Cleaner, Diesel Clean & Boost, Engine Oil Resealer and Viscoplus are tested for turbochargers, and most are also tested with catalytic converters. Check each product page for the exact approvals.
Is the LIQUI MOLY sold by AutoCave genuine Australian stock?
Yes. Every LIQUI MOLY product we sell is genuine stock, and article numbers are checked against the official LIQUI MOLY Australia range. Orders ship Australia-wide from our Sydney warehouse in Artarmon, NSW.
Where can I buy LIQUI MOLY additives in Australia?
AutoCave stocks the LIQUI MOLY additive range online, including Cera Tec, MoS2, Diesel Clean & Boost, DPF Anti-Clog, injector cleaners, engine flushes and the Pro-Line workshop range. Prices are checked against the major Australian retailers and orders ship Australia-wide.
Guides
Read our Cera Tec vs MoS2 comparison, how to use Diesel Clean & Boost, best LIQUI MOLY additives for diesel 4WDs and is LIQUI MOLY worth it in Australia?
