That would allow the oil to circulate through the turbo and continue to cool it off before you shut off the engine. The danger, in those days, was that if the turbo was too hot when you shut off the engine, the oil might dry up and get “coked,” blocking those oil passages the way heart disease blocks your arteries.

What happens if you don't let turbo cool down?

As they say, you need to let the turbo spool down as it spins excess of 100,000 RPM while doing this oil is used to lubricate it, if you shut it down immediately there are high chances of oil residue forming on the turbo lines and clogging it up.

How long should you let your turbo cool down?

Idling the engine cools the turbo because it circulates the oil, yet does not make the turbo "work." The amount of cooling it needs is directly related to the way you just finished driving it. When you drive it gently around town, 15 seconds should be more than adequate.

What happens if turbo gets too hot?

The turbine inlet wall is cracked. There are spots of burnt oil on the turbine shaft. There is a “varnished” effect on the turbine end of the turbine shaft. The turbine housing has become deformed or misshaped.

Should you let a turbo car idle after driving?

Drive your car gently for the last minute or two of the drive, or let the car idle afterwards for at least 60 seconds. By letting it run. the oil will continue to circulate and cool down the turbo. One of the main reasons your turbo will die is because of oil “coking”.

Always WARM UP & COOL DOWN your TURBOCHARGED Car

How do I keep my turbo healthy?

6 Ways to Protect Your Turbo Engine

  1. Regular Oil Maintenance. ...
  2. Warm Up the Engine. ...
  3. Don't Overstep the Limits of the Turbo when Cruising. ...
  4. Use Your Gears to Overtake. ...
  5. Let the Engine Cool After Driving. ...
  6. Don't Blip the Throttle Before Turning the Engine Off.

Do turbos shorten engine life?

Turbochargers, Supercharges, and Nitrous all create higher cylinder pressures. This DOES reduce engine life ... PERIOD. Turbos and Superchargers make more heat, and heat reduces an engine's life ...

Do modern turbos need to cool down?

Turbocharged engines do need to cool down before they are turned off. But in nearly all driving conditions, the engine does not reach temperatures that require a deliberate cooling down period.

What can damage a turbo?

Most failures are caused by the three 'turbo killers' of oil starvation, oil contamination and foreign object damage. More than 90% of turbocharger failures are caused oil related either by oil starvation or oil contamination. Blocked or leaking pipes or lack of priming on fitting usually causes oil starvation.

How do I cool my turbo?

Many turbochargers are designed without water cooling ports and are sufficiently cooled by air and the lubricating oil that flows through them. Other turbochargers, such as many in the Garrett GT & GTX ball bearing lineup, are designed from the beginning to be cooled by oil and water.

What should you not do with a turbo engine?

  1. 5 Things You Shouldn't Do In A Turbocharged Vehicle. ...
  2. Don't Run Your Car Immediately. ...
  3. Don't Switch Off Immediately. ...
  4. Don't Lug Your Engine. ...
  5. Octane Fuel - Don't Use Lower Than Recommended. ...
  6. If you have a laggy turbo - don't mash the throttle.

How long should you let your car idle before turning it off turbo?

Let the car idle for 30 (minimum) - 60 (maximum) seconds before you drive off.

Can you daily a turbo car?

Yes, it is totally fine to daily drive a turbo car. In fact, turbocharging – at least from the perspective of many manufacturers – is more about making daily driving easier for the driver by making cars more powerful, more fuel efficient and easier to drive.

At what RPM is turbo activated?

From 1-2,400 rpm, the primary turbocharger is activated; at 2,400-2,800 rpm, the second turbocharger is activated; and beyond 2,800 rpm, both turbochargers function. This system is recommended for diesel engines with displacements of 2.0 liters and above, and V engines.

Why does my turbo whistle?

A "turbo whistle" usually indicates a worn and failing turbo bearing, which is pretty much all there is to go wrong with a turbo.

What are the signs of turbo failure?

Turbo Failure Symptoms

  • POWER LOSS. If you notice that your car isn't accelerating as powerfully as it used to, or is slow to react to your input, this might be a sign that your turbo is failing. ...
  • WHINING ENGINE. ...
  • EXHAUST SMOKE. ...
  • CHECK ENGINE LIGHT. ...
  • OIL/LUBRICATION. ...
  • DAMAGED SEALS. ...
  • FOREIGN OBJECTS/DEPOSITS. ...
  • WEAR & TEAR.

How many miles can a turbo last?

That said, there are many turbo engines that can last long. Take, for example, the turbodiesel in the Mark IV Volkswagen Golf / Jetta (from early 2000's). Many of them are going well past 200K miles with good maintenance.

How do you break in a new turbo?

Allow the vehicle to idle for 10-15 minutes without applying any throttle. Even at idle, the turbo can be spinning at as much as 28,000 RPM's on certain models. Use this time to check for any loose fittings, hoses, exhaust leaks, and to bleed the cooling system of any trapped air.

Do turbocharged engines need premium gas?

Not all turbocharged cars need premium gas, but it's a more common requirement among turbos than other kinds of engines, thanks to the way these engines work. The name turbo comes from the turbine these engines use to inject more air into the air-fuel mixture in the combustion chamber.

Do turbos burn oil?

If the turbocharger is losing engine oil via the intake or exhaust gas port, this usually means the pressure equilibrium is impaired due to problems with the oil/gas return line. Reasons for oil leakage: Blocked, kinked, constricted or carbonised return line.

Does turbo mess up your engine?

Smaller engines use less fuel, but being turbocharged adds pressure, which can lead to higher temps and engine knock, damaging the engine. To avoid this, you have to have a lower compression ratio. Thermal efficiency and compression ratio are directly correlated.

Why is my turbo glowing red?

Turbo chargers are made of iron. When iron gets hot, it glows red. This effect is called red heat - you can see the colours or iron and the effect of red here. Turbo chargers get hot because hot exhaust gases flow through the manifold then the turbo.

How often do Turbos need to be replaced?

However, turbochargers are wearable parts and they will wear down over time. Most turbochargers need to be replaced between 100,000 and 150,000 miles. If you are good at maintaining your car and get timely oil changes your turbocharger may last even longer than that.

How often should you clean a turbo?

If you drive in town or only run short distances, use Bardahl Turbo cleaner every 5,000 km or once a year. If you often drive on highways, use Bardahl Turbo cleaner every 10,000 km or once a year.