Make no mistake about it: these things called engine deposits are the enemy. 

Think of them like this. The engine is the heart, and those black engine deposits are like cholesterol building up. And the more there is, the harder it is for the engine to function, efficiency is affected, and eventually, you'll get a breakdown.  

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A Quick Guide to Engine Carbon Deposits: The Cholesterol to your Car's Heart

What are engine deposits?

Engine deposits, in technical terms, are made up of carbon deposits. And we're not talking about that slimy, oily deposits that accumulates outside of the engine that you can wipe off or easily wash clean. It's found inside, and is something you'll see if you open up your engine or use a borescope. 

Engine deposit happens inside an engine's combustion chamber as carbon deposits form up and coat vital and expensive components like the pistons, the combustion chamber, the fuel injectors, the intake valves, and more. It's difficult to remove, often requiring dangerous chemicals and a steel brush to do so... once the engine is taken apart, of course. 

The problem starts whenever you drive, as your engine's combustion chamber is the perfect place for engine deposits to form. The recipe for carbon deposits is simple: fuel, oxygen, heat, and pressure, all of which can be found in your engine.

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A Quick Guide to Engine Carbon Deposits: The Cholesterol to your Car's Heart

How do deposits affect your engine?

The formations of carbon deposits are thieves: they rob your engine of performance and make away with your money because your fuel economy gets worse, forcing you to fill up more frequently despite driving the same route every single day. 

The reason for this is because these carbon deposits act in the same way that cholesterol blocks a person's arteries: engine deposits can block your fuel injectors and intake valves, causing loss of power, poor fuel economy, and poor exhaust emissions. Your engine will not be performing at its best.

It can also change the shape of the place where the engine develops power: the combustion chamber. If the deposits get so bad, it can go so far as producing something called engine knock; a tapping sound as you accelerate indicating that the fuel is not igniting at the right time, losing you even more power.

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A Quick Guide to Engine Carbon Deposits: The Cholesterol to your Car's Heart

How do I remove deposits from inside my engine?

If the carbon deposits get so bad that it's robbing your pride and joy of its performance, then there are several ways to deal with the problem.

1. The most expensive: an overhaul

Anyone who has ever taken their car for an engine overhaul know it's like open heart surgery. It's painful and very expensive. Mechanics will pull out the engine, take it apart, painstakingly brush the parts with solvents and detergents, and then put it all back together. A proper overhaul can easily cost tens of thousands (or more, depending on the shop), and that's just the labor. Having to replace parts like valves and pistons aren't factored in yet.

A Quick Guide to Engine Carbon Deposits: The Cholesterol to your Car's Heart

2) Avoiding inferior fuels

Not all fuels are the same. Some fuels are formulated to sell, not to be the best, hence they can increase the chance for dangerous engine deposits. Your car's engine deserves better, but whenever you fill up with cheap, low-grade fuels, you're risking the life of the car that you depend on to get you to the office, to school, or take your family out of town.

3) Using aftermarket fuel additives

These additives have chemicals that actively clean your engine, and are generally not found in cheap, low-grade fuels. But these additives can be expensive, and it will take a long time to see and feel the results. It also involves actually having to pour it in your tank in specific amounts; a hassle for many who have neither the time nor the inclination, given your already busy schedules. 

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A Quick Guide to Engine Carbon Deposits: The Cholesterol to your Car's Heart

Make it easier to get rid of engine deposits with Caltex 

But the easiest -and by far the cheapest- option is to prevent the problem altogether, and you can do it with one tankful at a time of Caltex with the cleaning power of Techron.

Every time you fill up with any Caltex fuel, be it gasoline or diesel, you're helping your engine deal with the problem of engine deposits. Caltex fuels are loaded with Techron, a special additive that removes carbon deposits from your engine. 

A Quick Guide to Engine Carbon Deposits: The Cholesterol to your Car's Heart

While many fuels have additives that claim to control deposits, Caltex's Techron additive is formulated with unique polyetheramine chemistry that's proven effective at removing engine deposits and prevents it from accumulating. All Caltex gasoline variants contain Techron Clean and Glide Technology.

This formulation of Caltex will enable your engine to clean itself more quickly. It's a claim that Caltex is more than willing to back up with a borescope test, just to take out the guesswork and show how well Techron actually works in restoring your engine's power, fuel efficiency, emissions, smoothness, and overall reliability.

Give your car a clean bill of health by getting rid of your engine's cholesterol with every tankful of Caltex with Techron.