Practical, plain-English advice from the Irish home of Millers Oils, Rustbuster and Hawk coolant. Choose a topic below to find step-by-step how-tos, buyer’s guides and explainers, or get straight to the right product with our Oil Finder.
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Not sure where to begin? Each topic has a “Start here” guide.
🛡️Rust Protection & Restoration
Rustbuster how-tos: removing salt and rust, converting rust, epoxy primers and paints, cavity and underbody waxes, fuel tank sealing.
Start hereSurface Preparation: getting it right before you paint- Best rust converter: buyer’s guide
- Road salt: how to rust-proof before winter
- Rustproof trailers, horseboxes & farm machinery
- Galvanised gates & railings: fix rust & peeling paint
- Chassis restoration: strip, repair, paint & protect
- Rust Remover vs Rust Converter: which do you need?
- How to rustproof your car in 10 steps
- How to use FE-123 Rust Converter
⛽Fuel & Additives
E10 and ethanol protection, lead replacement for classics, octane boosters, injector and DPF cleaners.
Start hereWhich fuel additive do I need? The 30-second picker- E10 petrol problems for older engines
- Lead replacement & E10 protection for classic cars
- Fuel injector cleaner: petrol & diesel
- DPF cleaner: how to clean a blocked DPF
- Octane booster explained
- Lawnmowers, strimmers & chainsaws: oil and fuel
🛢️Engine Oils & Car Fluids
Engine oil grades and specs, gearbox oil, brake fluid, power steering fluid and greases for modern cars and vans.
Start hereEngine oil grades explained: 5W-40, ACEA C3 and more- The science behind Millers EE Performance
- DOT 5 silicone brake fluid: pros & cons
- Gearbox oil: manual, auto, DSG & CVT
- Engine flush, stop leak & driveline flush
- Brake fluid: DOT 3 vs 4 vs 5 vs 5.1
- Power steering fluid: PSF vs CHF
- Which grease do I need?
🏁Classic & Vintage Care
Keeping older vehicles healthy: fuel and ethanol worries, lead replacement, brake fluid, and laying up for winter.
Start hereLead replacement & E10: an Irish classic owner’s guide- Winter lay-up checklist (cars & bikes)
- VSPe vs Valvemaster
- Classic car oil guide: which oil for your era
🏍️Motorcycle & Motorsport
Choosing bike oil, two-stroke mix ratios, and the race oils trusted from Irish rally stages to the Dakar.
Start hereMotorcycle oil explained: how to choose the right oil- Two-stroke oil: mix ratios & ratings
- Race engine oil: CFS vs CFS NT+
- From Irish rally stages to the Dakar
❄️Hawk Waterless Coolant
How waterless coolant works, which Hawk coolant suits your engine, and how to convert.
Start hereHow waterless engine coolant works- Which Hawk waterless coolant do I need?
- How to convert your engine
- Waterless coolant: your questions answered
🏭Industrial & Workshop
Compressor and hydraulic oils, cutting and tapping fluids, tube-bending lubricants and slideway oils.
Start hereTube bending without the fumes: Solform Gel- Compressor oil: which grade for your compressor?
- Hydraulic oil: ISO 32, 46 or 68?
- Cutting & tapping fluids: which one?
- Health & safety and product data sheets
📰 News
New products, brand updates and stories from the Millers world.
Read the news →📘 Brochures & data sheets
Download Millers range brochures. Safety data sheets are free on request.
View brochures →Latest articles
Our newest guides and news.
Best Rust Converter: How to Choose the Right One (and Why We Use FE-123)
Which rust converter actually works? What to look for, Practical Classics’ test results (FE-123 scored 10/10 Best Buy), which size to buy and when not to use one.
How to Restore a Rusty Chassis: Strip, Repair, Paint and Protect
A stage-by-stage chassis restoration guide for classics, Land Rovers, 4x4s and vans: assessing the chassis, stripping and salt removal, weld-through primer, zinc and epoxy primers, Epoxy Mastic, seam sealing and cavity wax.
Galvanised Gates and Railings: How to Fix Rust, White Rust and Peeling Paint
What white rust, dull patches and red rust mean on a galvanised gate, how to fix rust without grinding off the zinc, how to paint galvanising so it stays on, and how to restore painted iron gates.
How to Rustproof a Trailer, Horsebox or Farm Machinery
Where trailers, horseboxes and farm machinery rust first, a step-by-step Rustbuster system you can apply without blasting, galvanised trailer prep, and a yearly rust check.
Lawnmower, Strimmer and Chainsaw Oil and Fuel: A Small Engine Care Guide
Which oil your lawnmower needs, two-stroke mix ratios for strimmers and chainsaws, why E10 petrol stops small engines, and a winter storage checklist for garden machinery.
Race Engine Oil Explained: Millers CFS vs CFS NT+ (Plus CSS and CB40)
Millers CFS vs CFS NT+ race engine oil: what NANODRIVE does, the friction and wear test results, which grade to choose, plus CSS 20W-60 for historics and CB40 castor oil.
Engine Flush, Stop Leak and Driveline Flush: Oil System Treatments Explained
When to use Engine Flush, Stop Leak, Driveline Flushing Oil and Liquid Glaze Bust: how each works, how to use it, and when a treatment isn’t the answer.
Which Fuel Additive Do I Need? The Guide for Petrol, Diesel and Classic Engines
Which fuel additive do you need? A 30-second picker for petrol, diesel and classic engines, covering E10, lead replacement, injector and DPF cleaners, octane boosters and storage.
Cutting, Drilling and Tapping Fluids: Which One Do You Need?
Neat tapping fluid, thread-cutting paste or soluble coolant? How to choose cutting, drilling and tapping fluids, with Millersol TS dilution rates and coolant care.
Can’t find what you need? Our family team has spent decades in the motor trade. Ask us anything about oils, fluids or rust.
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