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Part #:

01021

Product Name:Royal Purple Synthetic Extreme Performance & Racing Motor Oil
Oil Grade Type:5W30 XPR Racing 21
Manufacturer: Royal Purple
Brand: Royal Purple Synthetic Oil
Product Line: Royal Purple Synthetic XPR Extreme Performance & Racing Motor Oils
Categories: Motor Oil, Racing Motor Oil
$15.99   $14.39   $1.60 Add to Cart
royal purple synthetic motor engine oil
Racing 21 (1 Quart) 5W30
5 Reviews
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Shipping Notes: Ships Oversize
Additional Shipping Notes:
Only Case & Gallon orders require oversize shipping.  Oils & Fluid cannot be shipped to an APO or FPO.

Product Description
Royal Purple full synthetic racing motor oils are recommended for use in various racing applications.  Royal Purple XPR extreme performance and racing motor engine oils are extremely popular in all forms of motor sports, from NASCAR and NHRA to the World of Outlaws and the Bonneville Salt Flats.  Professional engine builders and race teams have cited increased horsepower and longer engine life with the use of Royal Purple.  Royal Purple® Racing Oils gain their performance advantages through Royal Purple?s proprietary Synerlec additive technology.  Royal Purple Racing Oils provide more protection than conventional motor oils (mineral or synthetic) including those combined with aftermarket additives.  Decide which oil is right for you.  Click on specifications tab to find out.

  • Greater wear protection on startup:  Clean, efficient equipment.  Extends equipment life.  Compatible with conventional mineral and synthetic oils.  Non-foaming. Outstanding rust / corrosion protection.  High temperature service capability
  • Used by the Professionals:  Including NASCAR, NHRA, World of Outlaws, and Bonneville Salt Flats
  • Better Protection:  Provides better protection than conventional motor oils, mineral or synthetic.  Increased horsepower and longer engine life
  • Available in quarts, 12 quart cases, and 5 gallon pails
  • Racing 9: Racing 9 is an ultra-light viscosity motor oil formulated for gasoline engines used in drag racing, motorcycle sprint racing, etc.  Viscosity typical of a 0W10 oil.
  • Racing 11: Racing 11 is a light viscosity motor oil formulated to withstand exotic fuels such as alcohol, methanol, and nitrous oxide (NO2).  Excellent for drag racing.  Viscosity typical of a 5W20 oil.
  • Racing 11 Lite: Racing 11 Lite is an ultra-light viscosity motor oil formulated for use in high RPM and / or solid lift engines.  Racing 11 Lite combats emulsification and separates from exotic fuels such as alcohol, methanol, etc.  Racing 11 Lite is recommended for use in Pro Stock, Competition Eliminator, Super Stock, Jr. Dragster (methanol) and Karts (methanol).  Viscosity typical of a 0W10 oil.
  • Racing 21:  Racing 21 works well in a variety of applications from oval track late models to bracket racing.  It is extremely versatile and produces excellent horsepower while preventing wear.  Viscosity typical of a 5W30 Oil.
  • Racing 41: Racing 41 is designed for marine, oval track and endurance car racing.  Capable of withstanding long intervals of extreme heat, it works especially well with alcohol and methanol.  It is extremely popular in sprint cars, late models and World of Outlaws racing.  Viscosity typical of a 10W40 oil.
  • Racing 51: Racing 51 is formulated for running extended periods under extreme pressure and heat.  It is used in oval track, marine and drag racing, and is very popular in sprint cars, late models, truck pullers and bracket racing.  Viscosity typical of a 20W50 oil.
  • Racing 2008: Racing 2008 is an ultra-light viscosity oil designed exclusively for tight tolerance, high RPM, naturally aspirated engines with gapless rings.  It offers excellent protection while producing maximum horsepower gain in Pro Stock, Pro Stock Bike, and Competition Eliminator drag racing engines.  Viscosity typical of a 0W7 oil.
  • Nitro Plus Oils:  Nitro Plus Oils are straight-grade synthetic engines oils formulated specifically for use in blown alcohol, nitro-methane, or any racing applications that experience excessive fuel dilution.  Nitro Plus 30: Viscosity typical of an SAE 30 Oil  Nitro Plus 50: Viscosity typical of an SAE 50 Oil.  Nitro Plus 60: Viscosity typical of an SAE 60 Oil  Nitro Plus 60 Warm Up: Nitro Plus 60 Warm Up is a cost effective way to warm up a Nitro car.  Viscosity typical of an SAE 60.  Nitro Plus 70: Viscosity typical of an SAE 70 Oil.  Nitro Plus 80: Viscosity typical of an SAE 80 Oil.
Associated Documents

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Royal Purple Synthetic Racing Oil Features
All Racing Oil All Racing Oil
Royal Purple has a full line of synthetic racing oils. 13 choices available.
Nitro Plus 50 (SAE 30) Nitro Plus 50 (SAE 30)
The five gallon pail Nitro Plus Oils are straight-grade synthetic engines oils formulated specifically for use in blown alcohol, nitro-methane, or any racing applications that experience excessive fuel dilution.
Racing 11 (1 Quart) 5W20 Racing 11 (1 Quart) 5W20
Racing 11 is a light viscosity motor oil formulated to withstand exotic fuels such as alcohol, methanol, and nitrous oxide (NO2). Excellent for drag racing. Viscosity typical of a 5W20 oil.
Racing 21 (1 Quart) 5W30 Racing 21 (1 Quart) 5W30
Racing 21 works well in a variety of applications from oval track late models to bracket racing. It is extremely versatile and produces excellent horsepower while preventing wear. Viscosity typical of a 5W30 Oil.
Racing 41 (1 Quart) 10W40 Racing 41 (1 Quart) 10W40
Racing 41 is designed for marine, oval track and endurance car racing. Capable of withstanding long intervals of extreme heat, it works especially well with alcohol and methanol. It is extremely popular in sprint cars, late models and World of Outlaws racing. Viscosity typical of a 10W40 oil.
Racing 51 (1 Quart) 20W50 Racing 51 (1 Quart) 20W50
Racing 51 is formulated for running extended periods under extreme pressure and heat. It is used in oval track, marine and drag racing, and is very popular in sprint cars, late models, truck pullers and bracket racing. Viscosity typical of a 20W50 oil.
Racing 9 (1 Quart) 0W10 Racing 9 (1 Quart) 0W10
Racing 9 is an ultra-light viscosity motor oil formulated for gasoline engines used in drag racing, motorcycle sprint racing, etc. Viscosity typical of a 0W10 oil.
12 Quart Cases Available 12 Quart Cases Available
The Racing motors oils are available in 12 Quart Cases. Receive 12 Bottles, 1 Quart Each
5 Gallon Pails Available 5 Gallon Pails Available
The five gallon pail comes in handy for storage and ultimately getting a better price for a large quantity.
55 Gallon Drum & 5 Gallon Pail 55 Gallon Drum & 5 Gallon Pail
Available in a variety of container sizes. 5 gallon pails and 55 gallon drums (Note: 55 gallon drum ships truck freight)
55 Gallon Drum Available 55 Gallon Drum Available
55 Gallon drums are available, for the true gearhead. These ship truck freight
Why Use Royal Purple?  See Attatched PDF Below.

Can I use racing oils in my street car?
Yes. Royal Purple's racing oils are formulated with detergents / dispersants necessary for daily use. The heavier grades (i.e. 21, 41 and 51) may be used in street driven applications. However, Royal Purple's racing oils do not conform to API and / or ILSAC licensing requirements and should not be used when vehicle warranty is an issue.

What is the difference between your SAE motor oils and your racing oils?
Royal Purple's motor oils are formulated to provide unparalleled performance and protection and comply with API / ILSAC specifications. Its racing oils vary in viscosity and formulation as compared to the SAE motor oils to provide the greatest performance gains possible without regard to API, SAE and / or ILSAC specifications.

What product should I use in my race car?
Royal Purple® has several options for racers. Its standard motor oils are formulated to outperform many of the "racing" oils on the market. But Royal Purple's racing oils redefine the category. Royal Purple's racing oils offer an even greater performance increase than its motor oils. With that said, the following are some guidelines to determine which products to use. As a point of reference, Royal Purple® recommends using a racing oil that is closest in viscosity to the oil the race car is currently using (e.g. a racer using a conventional or synthetic 20W50 racing oil would be safe using either Royal Purple's SAE 20W50 motor oil or upgrading to Royal Purple's Racing 51). The tolerances to which the motor was built can play a role in an oil recommendation. Looser specs (e.g. greater than .003") might require heavier weight oil than a motor built to tighter specs (e.g. .002") to maintain idle oil pressure. Keep in mind that it is much easier to be conservative and use heavier weight viscosity oils and then go lighter when experience and comfort level dictate.

Can I run your oils with exotic fuels (alcohol, methanol, nitrous-oxide, etc.)?
Yes. Royal Purple's lubricants can be used with exotic fuels. For the best protection, Royal Purple® has formulated its Racing 11 and Racing 41 specifically with this in mind. These two oils are formulated to combat fuel emulsification to hold up even better than Royal Purple's other racing oils in alcohol and methanol applications.

Does this mean that I should not run your other oils with these fuels?
Not necessarily. Royal Purple's other oils will still perform better than conventional racing oils; however, Royal Purple® specifically formulated Racing 11 and Racing 41 with these requirements in mind.

How should I break in my racing motor with your oil?
We recommend using a quality mineral-based oil for break-in purposes. As a general rule, follow your engine builder's guidelines. On street setups, the rings should seat within the first three or four times the engine is brought to temperature. After the rings have seated, change to Royal Purple®. It is not recommended to break in an engine using Royal Purple®, as the film strength of the oil may not allow proper seating of the rings.

Can I use Royal Purple® with coated bearings?
Yes. You can use Royal Purple® on newly coated bearings with no mineral oil break-in required.

How often should I change the oil in a race car?
This can vary depending upon application and the level (amount) of contamination (i.e. dirt, fuel, water, etc.). A good rule of thumb is to find out the racer's current type of oil and oil change interval. If the racer is using petroleum oil, you should feel comfortable doubling or tripling their change interval. If the racer is running another synthetic, you can feel comfortable doubling their change interval.

How will running your product affect my oil temperature?
In most instances, vehicles with properly functioning cooling systems can reduce oil temperatures by 5-20° F by using Royal Purple®.

What product do you recommend for use with nitro-methane?
Royal Purple's full line of "Nitro" oils have been specially formulated for use in high power nitro and blown alcohol applications.

What do you recommend for a Lenco transmission?
For the 5-speed transmission, Royal Purple's Max ATF® or Racing 9 motor oil is recommended. For a 3 speed, Max ATF® is the best bet.

I notice a heavy odor from the gear oil after a race. Is this normal? Why?
The noncorrosive, extreme pressure additives in gear oils do give off a distinctive odor, and this can be magnified under extreme racing conditions. This is normal for API-GL5 hypoid gear oils containing sulfur / phosphorous extreme pressure additives.

Is it true that your oils lose their performance edge after six or eight passes? (Drag Racing)
No. Royal Purple® has not found any evidence that it shows deterioration in performance after being subjected to race conditions. It is possible that fuel dilution contamination may start to hinder the performance of the engine oil; however, dyno results do not support this claim.
Associated Documents

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Please see attatched PDF files to decide which oil is right for your racing style and to see independant tests of Royal Purple oils.
To view the Royal Purple MSDS (Material Saftey Data Sheet) Click Below
For Detailed specs please contact customer service 7 Days a week at 1-877-216-5446 or cs@realtruck.com
  • Racing 9: Racing 9 is an ultra-light viscosity motor oil formulated for gasoline engines used in drag racing, motorcycle sprint racing, etc.  Viscosity typical of a 0W10 oil.
  • Racing 11: Racing 11 is a light viscosity motor oil formulated to withstand exotic fuels such as alcohol, methanol, and nitrous oxide (NO2).  Excellent for drag racing.  Viscosity typical of a 5W20 oil.
  • Racing 11 Lite: Racing 11 Lite is an ultra-light viscosity motor oil formulated for use in high RPM and / or solid lift engines.  Racing 11 Lite combats emulsification and separates from exotic fuels such as alcohol, methanol, etc.  Racing 11 Lite is recommended for use in Pro Stock, Competition Eliminator, Super Stock, Jr. Dragster (methanol) and Karts (methanol).  Viscosity typical of a 0W10 oil.
  • Racing 21:  Racing 21 works well in a variety of applications from oval track late models to bracket racing.  It is extremely versatile and produces excellent horsepower while preventing wear.  Viscosity typical of a 5W30 Oil.
  • Racing 41: Racing 41 is designed for marine, oval track and endurance car racing.  Capable of withstanding long intervals of extreme heat, it works especially well with alcohol and methanol.  It is extremely popular in sprint cars, late models and World of Outlaws racing.  Viscosity typical of a 10W40 oil.
  • Racing 51: Racing 51 is formulated for running extended periods under extreme pressure and heat.  It is used in oval track, marine and drag racing, and is very popular in sprint cars, late models, truck pullers and bracket racing.  Viscosity typical of a 20W50 oil.
  • Racing 2008: Racing 2008 is an ultra-light viscosity oil designed exclusively for tight tolerance, high RPM, naturally aspirated engines with gapless rings.  It offers excellent protection while producing maximum horsepower gain in Pro Stock, Pro Stock Bike, and Competition Eliminator drag racing engines.  Viscosity typical of a 0W7 oil.
  • Nitro Plus Oils:
    Nitro Plus Oils are straight-grade synthetic engines oils formulated specifically for use in blown alcohol, nitro-methane, or any racing applications that experience excessive fuel dilution.
  • Nitro Plus 30: Viscosity typical of an SAE 30 Oil
  • Nitro Plus 50: Viscosity typical of an SAE 50 Oil
  • Nitro Plus 60: Viscosity typical of an SAE 60 Oil
  • Nitro Plus 60 Warm Up: Nitro Plus 60 Warm Up is a cost effective way to warm up a Nitro car.  Viscosity typical of an SAE 60.
  • Nitro Plus 70: Viscosity typical of an SAE 70 Oil
  • Nitro Plus 80: Viscosity typical of an SAE 80 Oil
Associated Documents

Note: Adobe Reader is required to view PDF documents: Download Adobe Reader
Simple to put in your vehicle.  Just drain existing oil and replace with Royal Purple.  Royal Purple is compatible with other mineral and synthetic oils.  For additional information please call 7-days a week 1-877-216-5446 or 701-253-5906.  You can also email us at cs@realtruck.com

Royal Purple Synthetic XPR Extreme Performance & Racing Motor Oils Customer Reviews

Customer Rating Product
RP-01041 - Royal Purple Synthetic Extreme Performance & Racing Motor Oil
Posted By: Scott B. (Jamestown, ND) on 08/2008
RP-12041 - Royal Purple Synthetic Extreme Performance & Racing Motor Oil
Posted By: Scott B. (Jamestown, ND) on 03/2008
RP-12041 - Royal Purple Synthetic Extreme Performance & Racing Motor Oil
Posted By: Scott B. (Jamestown, ND) on 03/2008
The best stuff for racing!!
RP-12041 - Royal Purple Synthetic Extreme Performance & Racing Motor Oil
Posted By: Matt N. (Salt Lake City, UT) on 12/2007
Love this stuff will be ordering more great for performance
RP-12041 - Royal Purple Synthetic Extreme Performance & Racing Motor Oil
Posted By: William W. (New York, NY) on 12/2007
My engine builder for my race car said after he pulled my engine apart, that the wear was the best he had ever seen. He said, stay with RP. I will.

Manufacturer Information

royal purple synthetic motor oil
Royal Purple Premium Oil products. Headquartered in Porter, Texas, Royal Purple is a privately-held company that produces a wide range of high performance lubricants for nearly every consumer and industrial application. Its founder was a pioneer in the development of high performance synthetic lubricants. Collectively, Royal Purple's formulators have more than 200 years of expertise in developing high performance lubricants.
View all Royal Purple products

Manufacturer Documents

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