Why do diesels use thicker oil?

Higher the viscosity thicker the oil. It is believed that thick oils are better at maintaining film strength and oil pressure at high temperatures and loads. This oil is majorly made for the rare cars which are with diesel engines that burns oil excessively. It is a premium high performance mineral.
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Is diesel engine oil thicker?

Typically, diesel engine oil will have a higher viscosity.

If we were to put this higher viscosity in a gasoline engine, several problems might arise.
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Why do race engines use thicker oil?

Racing Oil Needs to Be Thicker

Racing oil tends to have a high viscosity because it enables them to provide the right coverage even in the increasing heat faced during a race. For example, AMSOIL´s DOMINATOR® SAE 60 Racing Oil has the right viscosity to keep the engine safe when high temperatures are reached.
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Is Thicker oil better for turbo?

Thick oil is also ineffective at properly lubricating moving parts, which can cause problems in the turbo system.
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Will thicker oil hurt engine?

Not only that, but the engine will waste energy pumping the thicker oil, reducing fuel economy. Since thicker oil doesn't transfer heat as well as thinner oil, operating temperatures will increase, possibly leading to accelerated chemical break down (called “oxidation“) and harmful sludge and deposits.
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7 Engine Oil Myths Stupid People Fall For



Do high mileage engines need thicker oil?

A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. The slightly thicker oil film from the heavier base weight oil - 10W - can help protect worn engine bearings as well.
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What happens if you put 10w40 instead of 5w30?

Your vehicle does not use 5W-30 oil. The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even 10W-40 is still perfectly OK to use if outdoor temperatures are below freezing.
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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.
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How do I prolong my turbo life?

Here are some easy steps to help those of us with turbocharged engines prolong the life of our turbochargers:
  1. Change your engine oil regularly and religiously. ...
  2. Keep the flow of air to and from your turbo as clear as can be. ...
  3. Do not ignore your intercooler. ...
  4. Always be sure to flush coolant more regularly.
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Does engine oil get thinner over time?

Nope – other way around! Motor oil gets thinner as it's heated, but to prevent it from getting too thin at higher temperatures, additives (viscosity modifiers) are used so that it behaves like a thicker grade oil at higher temps.
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What grade of oil do f1 cars use?

The most common type of race oil is a 10W-60 viscosity grade based on a Group IV full-synthetic PAO base oil blend. However, there are many base oil mixtures possible.
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What oil is used in Nascar engines?

Mobil 1™ is the Official Motor Oil of NASCAR® ExxonMobil and NASCAR have a long-standing partnership, with the Mobil 1™ brand serving as the Official Motor Oil of NASCAR since 2003.
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What is the best oil to use in a diesel engine?

If you're looking for the best oil for your diesel engine, you can't go wrong with synthetic oil. Synthetic oil is designed to withstand extreme temperatures and conditions, making it ideal for use in diesel engines. It also provides superior protection against wear and tear, helping to extend the life of your engine.
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Why does diesel engine oil get so black?

Remnants of the combusted diesel fuel turn to soot and when it moves past the piston rings it ends up in the engine's crankcase sump oil pan area, where the engine oil is stored. The soot created by a diesel engine combustion process is inherent to diesel engine design and is considered normal.
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Is it OK to use 15W-40 instead of 10w30?

Because 10W-30 is thinner than 15W-40 oil, its film strength can be weaker and it can be more prone to oxidation. Therefore, high quality additives are needed to compensate for those weaknesses in order for a 10W-30 engine oil to protect as well and last as long as a 15W-40.
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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 ...
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Should a 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.
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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.
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What temperature does a turbo run at?

The turbines in most current production turbochargers are suitable for continuous operation at an exhaust gas inlet temperature of 1750°F (950°C).
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Can a turbo overheat?

Causes of overheating:

Hot shut down. DPF issues, such as regeneration, resulting in increased exhaust gas pressure and temperatures which leads to overheating of the turbine side of the turbocharger. Remapping, chipping or over-fueling.
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What causes hot exhaust?

If the exhaust system is dealing with any constrictions, it will cause the temperatures to rise. Additionally, the harder the engine has to work to produce power, the hotter the gases become. If the engine is overheating for any reason, the gases could exceed normal operating temperatures.
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Is amsoil really better?

AMSOIL synthetic motor oil withstands extreme heat and shearing forces, exceeding industry standards and outperforming competing brands. In fact, it fights viscosity breakdown 46 percent better than Mobil 1. It stands up to the devastating effects of high-horsepower, modern engines for maximum protection.
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What is the best engine oil for hot weather?

There are a few ways to get your car prepared for summer with synthetic oils. If you're capable of changing your oil, you can find synthetics at auto retailers. Look for containers with codes such as 0W-20, 5W-20, and 5W-30. These correspond to specific synthetic oil mixtures approved for standard vehicles.
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Is 10w40 good for high mileage?

Designed for high mileage vehicles

Mobil 1 High Mileage 10W-40 motor oil is recommended by ExxonMobil for use in high mileage vehicles (even those that have used lower quality conventional oils), including: Cars. Trucks.
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