When we were just hitting the road casually, you may have noticed some diesel cars have black smoke coming out from their exhaust system while there are also petrol cars that emitted bluish or white colored smoke. Do you wonder why there is a difference in colors for the smoke emitted and what each color actually means?
Normal smoke
First of all, the light and thin white smoke is usually the most common color that you see on the road. This is just a super normal situation that happened on a gasoline car and they are usually water vapour also known as steam.
This normally happens when you just start up your engine especially during the morning cold start. You should have totally no worries about it.
Thick white or grey smoke
But if the smoke is in thick white or greyish colour, probably your head gasket has blown up or is leaking, a broken cylinder head or coolant leaking into your combustion chamber.
And it means your car engine is getting in serious trouble which may result in expensive damages. We would strongly suggest you send your car to the service centre when you have noticed this problem before it is too late.
The blue smoke
Second, the blue smoke. When the smoke seems to be bluish or greyish colored, it probably means that your car has an oil leaking issue right now. The leaked oil has been burned altogether in your car engine’s combustion chamber. You may notice the oil leakage on your garage floor too.
It is usually caused by worn cylinder walls, leaking valve seals, or a damaged piston ring. You may refer to a technician for help immediately before a more serious damage to your engine.
Black smoke
Next, the black smoke. It indicated that the air fuel ratio in your combustion chamber has lost its balance. It normally happens when there is too much fuel or too less air in the combustion process.
Your car performance definitely would have significantly dropped. In this case, the main causes would be a clogged injector, dirty engine air filter, blocked intake manifold etc.
Solutions
For the minor blue smoke issue, we strongly recommend you to use Liqui Moly Motor Oil Saver.
Liqui Moly Motor Oil Saver can help to regenerate and maintain the rubber and plastic seals on your engine so it does prevent oil leakage problems. Hence the blue smoke emission can be eliminated. After adding this product into your engine oil, you may just drive as usual and wait for approximately 600-800KM mileage for its sealing effect to take place. However, if the oil leaking issue is quite serious we will more recommend you to send your car inspected immediately before any more serious damage is caused to your car.
And for the black smoke problem which normally occurs on diesel cars, we will recommend you to use Liqui Moly Diesel Smoke Stop.
Liqui Moly Diesel Smoke Stop is a highly effective diesel fuel additive which helps to reduce soot emission from the diesel engine by improving the combustion process. It helps to keep the engine and injectors clean, prevents seizing of injector needles, maintains engine performance and avoids high maintenance cost. You may add this product into your fuel tank anytime but just ensure that there is more than half a tank of diesel fuel in your fuel tank when adding.
Testimonial
2 Responses
My experience tells me that blue smoke with high mileage car usually indicates worn valve seals or piston rings, which allow oil to leak into fuel system around the cylinder or valves.
It burned more engine oil and you gotta check your dipstick more often and top up if needed. Repair this stuff costed me a lot 🥲💸💸
My experience tells me that blue smoke with high mileage car usually indicates worn valve seals or piston rings, which allow oil to leak into fuel system around the cylinder or valves.
It burned more engine oil and you gotta check your dipstick more often and top up if needed. Repair this stuff costed me a lot 🥲💸💸