1 Before removing the turbo, it is advised that you run the engine until it reaches operating temperature before shutting it off and gently emptying the engine oil (due to hot temperatures). The old oil filter should then be removed and discarded. A new one can be installed while the engine is still warm.
2 Yes, if the oil gets too hot it may vaporize causing damage to other parts of the engine.
3 Oil changes are recommended for any vehicle regardless of mileage or use. The oil should be changed regularly anyway because harmful particles will develop if you leave old oil in your engine too long. These include carbon build-up in the combustion chamber which can cause severe damage to the engine.
4 Turbocharged engines require special attention when changing their own oil. Since these engines produce more heat than normal engines, they can have higher oil pressure levels when they first start up after sitting for a period of time. This is usually only for an hour or two after which time the oil pressure drops back down to normal levels. 1 If you want to keep the oil change interval longer than usual (usually every 3000 miles), then you should add some oil pressure drop additives to reduce the pressure before it drops too low.
As others have stated, a turbo is quite straightforward, so use carb cleaning to remove the crud, lightly dry it with compressed air (making sure the oil passageways are solvent-free), and then pre-lube it with engine oil. The process takes about 15 minutes per side. Once cleaned, let it sit for at least 24 hours before reusing.
If you want to go further than this, there are two ways: Dry-turbo or wet-turbo. With dry-turbo, use a solvent to dissolve away the deposits. Be careful not to soak the bolt holes, or you might need to replace them. Then wash the turbine with water and detergent, followed by more water to remove any residue. It's important to wear protective gear when using a dry-turbo cleaner.
For wet-turbo, use a acid or alkali solution to dissolve the deposits. Then wash the turbine with water and detergent, followed by more water to neutralize the acid or base.
Both methods are effective in removing turbo-specific deposits that regular soap and water cannot get rid of. However, they are not recommended for use with polyurethane sealants or other chemicals because they could cause them to break down prematurely.
The best way to keep your turbo clean is to avoid using race gas as an ignition source.
Procedure for Turbo Break-in
The bearings will fail if there is no oil available at start-up and when the turbo is working. Running a turbo for five seconds without oil is the same as running an engine for five minutes without oil. The lack of lubrication will cause excessive wear to the bearing surfaces which will result in reduced efficiency and increased vibration during use.
Turbochargers work by spinning a shaft that drives a compressor wheel attached to the shaft. This compressor wheel compresses air entering the engine's intake manifold, allowing more fuel to be burned per cycle. The increased mass of compressed air allows the engine to run on less fuel, producing fewer emissions.
Oil is fed to the turbine blades to reduce friction and prevent corrosion. It also provides necessary lubrication for other parts of the turbo such as the compressor wheel. In addition to these functions, oil acts as a coolant for the intercooler, power steering pump, and transmission fluid cooler. Oil that does not get pumped through the engine after it is changed will be expelled from the bottom of the tank due to gravity. This means that oil pressure will be low even though the engine is still getting some lubrication because the new oil is being drawn from the bottom of the tank.
As with any mechanical device, turbines too will fail if not maintained properly.
To get the most out of your turbocharger, replace the oil at least every 5,000 miles and use a totally synthetic oil with the correct API for your car's engine. The optimal oil for your vehicle should be recommended in the owner's manual. However, if your car has less than 100,000 miles on it, then an oil change every 3,000 miles is sufficient to keep your turbocharged engine running smoothly.
Here are some additional points to consider: If you drive in cold weather, or if you have a diesel engine, your oil change interval may be extended to once per month or more during cold weather months. Oil quality affects how often you should change the oil in your car. Synthetic oils last longer and require changing less frequently than conventional oils. Also, make sure that your oil isn't contaminated with water or any other fluids. This will reduce the viscosity of the oil which can cause damage to your engine.
Changing the oil yourself is easy. First, remove the oil cap located on the top of the engine.
How to Replace Your Oil
If your turbo unit develops fractures or damage to its internal seals, oil might leak into your exhaust. The excess oil will burn away in a blue or grey color. When utilizing the turbocharger, you're more likely to notice these strong smells. Check to see if there is excessive smoke coming from your engine. If so, call a professional right away to prevent any further damage.
Smoky engines can be caused by many different problems, some of which are easily fixed while others require replacement parts. Have your engine inspected by a reputable auto repair shop as soon as possible if you are experiencing smoke during driving conditions. They can help diagnose the cause of your problem and make recommendations for future care.