Product details
Liqui Moly WOL 8901 Oil Smoke Stop 300ML – The Go-To Additive for Cutting Down Exhaust Smoke in Petrol and Diesel Engines
Fed up with that pesky blue smoke billowing out of your exhaust? Or maybe your engine’s guzzling oil like it’s going out of fashion? That’s where Liqui Moly’s WOL 8901 Oil Smoke Stop comes into its own – a handy little additive crafted to help petrol and diesel engines sip oil more sensibly and keep that annoying blue smoke in check.
So, what’s it actually doing under the bonnet?
Think of it as a bit of gentle TLC for your engine. This stuff works by sealing up worn pistons and rings – the usual suspects when it comes to oil sneaking into the combustion chamber. By patching these up, it helps bring back lost compression, meaning your engine runs smoother, quieter, and a fair bit more efficiently. Plus, it cuts down on that tell-tale blue smoke and oily mist that not only irritate drivers but aren’t great for the environment, either.
Why bother with it?
Engines, especially the older or well-travelled ones, tend to wear out over time, which often leads to higher oil consumption and more exhaust smoke. This additive doesn’t just help reduce those niggles – it also gives your catalytic converter a helping hand, extending its life by keeping harmful emissions in check. On top of that, it fights the thinning of your engine oil, so the oil stays in tip-top shape longer, protecting the crucial bits inside your engine.
How do you use it, and what can you expect?
It couldn’t be simpler – just pour the 300ML bottle into your engine oil. It’s suitable for both petrol and diesel engines, so it’s pretty versatile. You’ll soon notice your engine drinking less oil and running a bit more quietly as the additive gets stuck in. It’s a brilliant option if you’re keen on looking after your engine without forking out for costly repairs or replacements.
- Helps cut down oil consumption by sealing piston rings and valve guides.
- Prolongs catalytic converter lifespan by reducing harmful exhaust emissions.
- Seals worn pistons and rings to restore compression and engine power.
- Quiets engine noise for a smoother, more pleasant drive.
- Stops blue smoke and oily mist puffing out of your exhaust.
- Protects engine oil from losing viscosity, ensuring longer-lasting performance.
- Works with both petrol and diesel engines and is easy to add during regular servicing.
Now, while it’s not a miracle cure for engines that are knackered or badly worn, it does offer extra protection and can improve performance noticeably. Best used as part of your regular maintenance routine rather than relying on it to fix serious engine problems. For most motorists, though, it’s a clever, cost-effective way to keep your engine running cleaner, quieter, and healthier for longer.
So, if your motor’s been puffing out more blue smoke than usual or slurping oil faster than it should, give Liqui Moly WOL 8901 Oil Smoke Stop a go. It’s the straightforward, no-nonsense bit of engine care you didn’t know you needed – no messing about with complicated fixes, just simple, effective help in a bottle.

