Why do race cars use heavy oil?

That being the case, they compete with each other for space, so to speak, like pigs competing for room at the trough. Racing oils are often formulated with a heavy dose of friction modifiers to add lubricity for maximum horsepower and torque.
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Why do race cars use thicker oil?

The goal of racing cars is to achieve maximum speed and thinner oil helps gain more speed by reducing frictional losses. In contrast to road cars, horsepower is secondary to engine longevity and efficiency. Hence, thicker oil works better in keeping the contact wear at a minimum.
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Is Thicker oil better for racing?

Thicker Oil May Not Flow Quickly Enough

Its lower viscosity allows it to flow faster and fill the tiny clearances between parts, leading to a durable, consistent lubricating film. Not only that, but the engine will waste energy pumping the thicker oil, reducing fuel economy.
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What kind of oil do race cars use?

Custom racing engines need to endure high rpm and operating temperatures, so they require specially formulated, advanced motor oils. It's a big reason why Mobil 1 is the Official Motor Oil of NASCAR and half of all NASCAR teams use Mobil 1 motor oils for proven performance in the most extreme conditions.
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What is the difference between racing oil and regular oil?

Racing oil contains three times more antiwear and friction reducing additives (for less wear and more horsepower) than ordinary oil.
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Should You Use Racing Oil In Your Road Car?



What weight oil do Nascar engines use?

What Weight Oil Do Nascar Engines Use? The NASCAR Engine Oil Viscosity NHRA Pro Stock is 0W-5. The NASCAR Sprint Cup is 10W-30. The World of Outlaws – 15-50.
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What oil weight does f1 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.
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What is the best oil to use in a race engine?

AMSOIL products are recognized as the best and most effective by professional racers in North America. AMSOIL products are renowned for their exceptional performance, which is evidenced by the number of championships and checkered flags claimed by AMSOIL sponsored racers.
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Does high performance oil make a difference?

With one high-performance car test with a leading synthetic oil, torque improved by less than 1 per cent and horsepower was up around 1.5 per cent. Fuel efficiency gains were better – up nearly 1 mile per gallon.
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What oil does Top Fuel dragster use?

Top Fuel dragsters require 70W while Pro Stock racers run the thinnest oil possible, around 0W-5. There is a difference between viscosity (a measured value) and viscosity grade (which spans a range of measured viscosity values).
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Will 10W40 hurt a 5w30 engine?

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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Is 10W40 thicker than 10W30?

10W40 oil has a higher viscosity, retaining more thickness than 10W30 as the temperature rises. In that case, 10W-40 motor oil would technically provide better protection against engine wear contact in higher temperatures.
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When should I use thicker oil?

There are some circumstances where drivers have used thicker oil in an engine. If, for instance, clearances between engine components have increased, gotten sloppy, a thicker oil can help to fill the void. Within reason, thicker oil maintains a better lubricant film between moving parts.
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Is 5w30 thicker than 10w30?

So both the oils 5W–30 and 10W–30 have exactly the same viscosity (SAE 30) when your engine is running, and will perform in the same way. However, the 10W–30 oil will be thicker (higher viscosity) than the 5W–30 when it is cool.
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Should I use thicker oil in a high mileage engine?

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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Why is Royal Purple oil so good?

Increase Power – Royal Purple Motor Oil reduces friction and improves combustion efficiency that translates into more horsepower and torque. Royal Purple has been proven in independent testing to increase horsepower and torque between 3 – 5% compared to leading synthetic and conventional oils.
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Does oil viscosity affect horsepower?

The viscosity of oil in your engine will affect horsepower or power output tremendously. Using a high viscosity oil actually puts a load on the engine because the oil pump is working harder to pump oil through the engine. A thicker oil will not necessarily improve boundary lubrication either.
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What is the disadvantage of synthetic oil?

Probably the most glaring downside of synthetic oil is the cost. The price of synthetic oil is around two to four times the price of conventional oil. Synthetics may be more prone to additives precipitation during cold storage conditions.
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What oil do v8 Supercars use?

“Castrol has been a great supporter of Supercars as our Official Oil supplier, and naming rights partner of the Castrol EDGE Townsville 400 and Castrol Gold Coast 600," Braid said.
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What oil does Ferrari F1 use?

The new technology has also made its way onto the F1 race track as the Scuderia Ferrari team now uses a race blend of motor oil containing Pennzoil® PurePlus® Technology.
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What oil does Red Bull F1 use?

The Mobil 1™ brand is Red Bull Racing's official lubricant partner. The relationship supplies the Formula One team with Mobil 1™ racing oils and provides world-class engineering support throughout the race season.
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What oil do Mercedes F1 cars use?

Each F1 team has their own oil and fuel supplier, such as Petronas for Mercedes and Mobil 1 for Red Bull, and they will supply the team with a top secret mix of chemicals to provide an oil that is fully optimized for that team's car.
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What is the official oil of NASCAR?

3, 2017) – Today, at the NASCAR Fuel For Business meetings in New York City, NASCAR® and ExxonMobil announced the renewal of a long-standing partnership that will continue to designate the Mobil 1™ brand as the “Official Motor Oil of NASCAR®.” The newly signed agreement will extend the successful partnership to 20 ...
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What motor oil does Hendrick Motorsports use?

Off the track, Valvoline is the preferred lubricant of Hendrick Automotive Group, which operates 97 car dealerships across the United States and poured nearly 1 million gallons of Valvoline product in 2016.
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