Oil injection car

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Oil injection car

Is there any correlation between direct injection and oil getting in the fuel? During the past year I read about concerns of oil dilution from unburned fuel with direct injection engines. This past winter when performing my weekly oil check on both our cars, I gave the oil on the clean rag the sniff test.

In addition to my car being the one with direct injection, I also have only a minute commute to work. The best I could come up with is that an excessive amount of fuel was getting into the oil during warmup because of the rich mixture in the extreme cold. As soon as Spring had sprung, I decided to head off any problems and performed an oil and filter change even though there was only miles on that oil. Things seem ok so far with miles on the new oil.

Do you or your colleagues have an opinion with respect to direct injection and engine longevity? I know some engines are also developing valve deposit problems.

I also wonder if manufacturers have looked at the long term effect of direct injection in cold climates. If gas is getting into the oil mainly during warm up each day, thenmiles on a test track may yield different results from cold starts over the span of a 6 month. The first place to start would be to consider having the oil analyzed. This test will give you an indication of how the oil is holding up and if there is excessive contaminants in the oil.

Oil analysis kits can be purchased at local auto parts stores or online. The concept of direct injection is not a new one, after all diesel engines are direct injection. One thing to be aware of is not all synthetic oil is created equal.

Some oil is actually made by fracking and is actually gas based and may just smell differently. A certified mechanic, Paul tests dozens of new cars each year and also hosts a radio show on AM and Save my name, email, and website in this browser for the next time I comment. If gas is getting into the oil mainly during warm up each day, thenmiles on a test track may yield different results from cold starts over the span of a 6 month A.PCV stands for positive crankcase ventilation.

However, this is far from the truth and not only does the PCV system affect emissions production, it also impacts engine longevity, oil life, and the all-important horsepower number. It is true, however, that up to 20 percent of the total hydrocarbon emissions produced by a vehicle are the result of blow-by; or, in other words, combustion gases that make their way past the piston rings under normal vehicle operation that would otherwise be released to the atmosphere without a PCV system.

This blow-by does several things once it passes into your crankcase. First, it contaminates the oil. This leads to quicker breakdown of the lubricant and can allow fuel particles to travel to critical components, preventing the oil from doing its job and causing premature engine wear.

Next, it can cause moisture to accumulate in the crankcase, leading to the premature corrosion of parts, sludge build up, and again, premature wear. Finally, the blow-by gases create pressure in the crankcase.

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This causes the engine to work harder to spin and prevents the rings from sealing against their bores properly, costing you power and creating more blow-by gases, which then becomes a vicious cycle. But, in the early s, the PCV system emerged in California of course, right?

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While it may have just been an annoying new emissions system when it was first released, it quickly proved to have more benefits—which we previously detailed—than just emissions reductions.

This quickly lead to the implementation of PCV systems across the board starting in This meant that they were connected to a manifold vacuum source on one end and drew fresh air into the system through a mesh filter inside the oil filler cap or a breather. In an open system, there is nothing stopping engine vapors from backing up at high engine RPM. This would often lead to crankcase gases leaking back out of the fresh air intake side of the system i.

This system implemented a PCV valve into the mix. The PCV valve is basically a one-way valve that only allows crankcase gases to flow one way in the system. Also, in a closed system, it draws air from a clean air source, such as the air cleaner or intake tube, on one side and is connected to an after-throttle-body source on the other.

This prevents the system from gumming up the throttle blade. On closed systems, it is important to remember that converting them to an open system without the right modifications is a bad idea. Since the PCV system is drawing air into the manifold, if you open the system to outside air, it will function in the same manner as a massive vacuum leak, since the computer in modern systems has no way of metering the air entering the manifold not drawn through the intake system.

As you can plainly see, PCV systems are not only necessary for the longevity of your engine and to prevent harmful emissions from escaping into the atmosphere, but they also increase horsepower and can even lengthen oil change intervals. Your factory system does a pretty good job at what it was designed to do, but it still may have a few problems. As air is being drawn through the system, oil that has been vaporized or atomized by high heat or rapidly moving parts, makes its way into the air.

This air is then drawn through the system and into the intake manifold. If you have ever taken the throttle body off of your LS, you know that the inside of the intake manifold is typically coated in oil. This is because the PCV system is constantly drawing oil-ladened air into it.

Oil coats the inside of this LS2 intake manifold.When it comes to modern engines mostly found in and newer vehicles, you would think with the regulations and advancements in technology would push toward a fairly efficient engine right?

Well, to a point that is true. These newer engines get better fuel economy, more power, and all that can be done in a smaller package.

The technology inside of these engines is where the downfall comes in. What are these downfalls you may ask? Well, Direct Injection engines get dirty very quickly. In as little as 5, miles these engines could be dirtier than an older port injected engine that hadmiles.

The reason this happens in modern engines is because of the Direct Injection style of these engines, gasoline is injected directly into the cylinder and combusted instantly. So, this issue leaves you with two major problems.

The first one is the valves get carbon deposits baked onto them. This can cause rough idle and hesitation. The second problem that occurs with the fuel injector itself, with the injector directly in the combustion chamber this is also exposed to the carbon deposit issue.

With this comes poor fuel economy, which is something no one wants with a newer car. The last two issues we talked about are the commonly known flaws with Direct Injection motors. But, what about the oil system of your new engine? As with any engine, modern or not, oil can drip down the valves. The difference is, in older engines it would be washed off by fuel and a non-issue.

As we said before, this is no longer the case in Direct Injection engines. Now we have oil dripping down the valves and causing them to get gummed up. Plus, these engines run a bit hotter than engines in the past, so it is literally baking these carbon deposits onto those valves.

A lot of these DFI engines have turbochargers attached to them, which take engine oil to lubricate them. If the turbo is not properly cared for it can cost big money to be replaced. Your engine oil is working twice as hard as it used to by lubricating both the turbo and the engine. Now, back to that solution we mentioned. The best solution for keeping your DFI engine clean and running at top performance is using an oil additive.Designed for today's most advanced systems including direct injection GDI and hybrids, Marvel Ultimate is also ideal for high mileage vehicles and for preventative maintenance.

Marvel Ultimate should be added to fuel or used in the crankcase in oil; specially formulated even for use in synthetic oil and with most advanced fuels including Top Tier, ethanol blends, and biodiesels. Add Marvel to your gas tank to restore engine performance. We added to the original Marvel Mystery Oil to create a specially formulated tool oil for use in all piston type and rotary air tools, as well as in-line air lubricators.

Marvel Air Tool Oil prevents rust formation in air tools while providing positive lubrication for smoother starting, longer lasting tools. Marvel Air Tool Oil assures the maximum performance of your tools by dissolving gum and sludge that reduce tools speed and power.

Using high quality lubricant base oil, advanced additive technology, and an understanding of the lubrication needs of high horsepower engines, we have designed an engine oil specifically for them.

Take your car to the MAX!

oil injection car

Not recommended for use in cars with catalytic converters. Marvel Classic Motor Oil is proprietarily designed for classic cars. Using high quality lubricant base oil, advanced additive technology, and an understanding of the lubrication needs of classic cars, we have designed an engine oil just for them. Recommended for use in cars with catalytic converters. Keep up to speed with MMO Enter your email and we'll let you know of our latest news!

Select a country. Type of Application. Air Tools. Commercial vehicle.

oil injection car

Small engine e. Workshop machine. Year of vehicle. Marvel Mystery Oil uses. Fuel system. General performance. Rust removal. Stored engine. Cold-weather start. Improved fuel economy. Frequency of use. Frequency of purchase. How did you hear about Marvel Mystery Oil?Fuel injectors are an engine management component that is found on the vast majority of road going vehicles.

They are controlled by the engine computer and operate by spraying the fuel in specific patterns and at specific timed intervals that will optimize engine performance. They are found on the vast majority of road going vehicles in one form or another. Because they are a part of the fuel system, any problems with the fuel injectors can cause all sorts of engine performance issues, that can sometimes even render the vehicle undrivable.

Usually a bad or failing fuel injector will produce a few symptoms that can alert the driver of a potential issue.

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One of the most common symptoms of a potential problem with a fuel injector is engine performance issues. A faulty fuel injector can cause the vehicle to experience misfiresa loss in power and accelerationa reduction in fuel efficiencyand in severe cases can cause stalling or prevent the engine from running at all.

Engine Oil Additives in Direct Injection Motors

Another common symptom of a potential issue with a fuel injector is a fuel smell. Injectors hold high pressures which over time can cause them to leak at the nozzle or at the seal that is located at the tip of the injector. A leaky injector will excess fuel into the combustion chamber of the engine, while a leaky seal will leak fuel at the base of the injector. Both can affect engine performance, specifically fuel efficiency, and both will usually produce a noticeable fuel smell. Any sort of fuel smells should be addressed as soon as possible in order to prevent them from becoming a potential safety hazard.

Another symptom of a potential issue with a fuel injector is an illuminated Check Engine Light. If any of the fuel injectors become clogged and cause a misfire, or experience an electrical issue the computer will set off the Check Engine Light to alert the driver of the issue. The Check Engine Light can also be activated by a wide variety of other engine management issues, so having the computer scanned for trouble codes is highly recommended.

Because of their role as the nozzles that provide the fuel that allows the engine to run, fuel injectors are a very important component to the overall operation and drivability of the vehicle.

If your vehicle is displaying any of the symptoms above, or you suspect that your vehicle may be having an issue with one of the fuel injectors, have the vehicle diagnosed by a professional technician, such as one from YourMechanic, to determine if any of the fuel injectors need to be replaced.

The most popular service booked by readers of this article is Fuel System Inspection.

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Our certified mobile mechanics make house calls in over 2, U. Fast, free online quotes for your car repair. Schedule Fuel System Inspection. Service Area. Average rating fromcustomers who received a Fuel System Inspection. Usually a bad or failing fuel injector will produce a few symptoms that can alert the driver of a potential issue 1.

CAR DOCTOR Q&A: Does Gasoline Direct Injection Cause Oil Dilution?

Engine misfires and decrease in power, acceleration, and fuel efficiency One of the most common symptoms of a potential problem with a fuel injector is engine performance issues. Fuel odor Another common symptom of a potential issue with a fuel injector is a fuel smell. Check Engine Light comes on Another symptom of a potential issue with a fuel injector is an illuminated Check Engine Light. Home Articles. The statements expressed above are only for informational purposes and should be independently verified.

Please see our terms of service for more details. Related Articles. Related Questions. Throttle Body and fuel injector cleaning normal to do at my miles?One solution is to fit twin-carburettors, but these are difficult to tune correctly.

oil injection car

Instead, many cars are now being fitted with fuel-injected engines where the fuel is delivered in precise bursts. Engines so equipped are usually more efficient and more powerful than carburetted ones, and they can also be more economical, as well as having less poisonous emissions.

The fuel injection system in petrolengined cars is always indirect, petrol being injected into the inlet manifold or inlet port rather than directly into the combustion chambers. This ensures that the fuel is well mixed with the air before it enters the chamber. Many diesel engineshowever, use direct injection in which the diesel is injected directly into the cylinder filled with compressed air.

Others use indirect injection in which the diesel fuel is injected into the specially shaped pre-combustion chamber which has a narrow passage connecting it to the cylinder head.

Only air is drawn into the cylinder. It is heated so much by compression that atomized fuel injected at the end of the compression stroke self-ignites. All modern petrol injection systems use indirect injection. A special pump sends the fuel under pressure from the fuel tank to the engine bay where, still under pressure, it is distributed individually to each cylinder.

Depending on the particular system, the fuel is fired into either the inlet manifold or the inlet port via an injector. This works much like the spray nozzle of a hoseensuring that the fuel comes out as a fine mist. Some cars have multi-point fuel injection where each cylinder is fed by its own injector. This is complex and can be expensive. It's more common to have single-point injection where a single injector feeds all the cylinders, or to have one injector to every two cylinders.

The injectors through which the fuel is sprayed are screwed, nozzle-first, into either the inlet manifold or the cylinder head and are angled so that the spray of fuel is fired towards the inlet valve.

The injectors are one of two types, depending on the injection system. The first system uses continuous injection where the fuel is squirted into the inlet port all the time the engine is running.

The injector simply acts as a spray nozzle to break up the fuel into a fine spray - it doesn't actually control the fuel flow.Here is how I injected pag 46 oil into the pressurized system of my wife's car AC. Not much is needed but a very special tool is required for this job. Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson.

Engine Oil Additives in Direct Injection Motors

Simple enough device that allows injection of oil into a fully pressurized system. The instructions are printed on its label. I used a new length of clear tubing to suck oil without getting it in my mouth. Once the syringe was filled I "jiggled" the plunger to remove air bubbles. This is the exact instruction by Robinair which left my eyebrows crooked for such a laughable term by a reputable company.

Anyhow, it worked to get the bubbles out. I first made sure to turn the blue valve knob fully anticlockwise until it stopped. Next I slipped the coupler onto the low pressure port turned the knob fully clockwise until it stopped.

Starting the car and putting the air conditioning on maximum.

oil injection car

I proceeded to inject the wonderful oil into the system and it required no real effort! Just half Oz is what I needed to sort out my issue. Too much oil will be dangerous to the compressor. Once I took off the coupler a small remainder of the oil is seen pooled into the port.

I closed the port by screwing on its cap and job done! By Mjtrinihobby Follow. More by the author:. Add Teacher Note. Did you make this project? Share it with us! I Made It! Table Saw Class 16, Enrolled.


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