AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive

AR9100 Oil Additive

$44.95
/
  • Free U.S. shipping on orders over $40
  • 100% Money Back Guarantee
  • In stock, ready to ship
  • Backordered, shipping soon

AR9100 utilizes nano-lubrication technology to protect your engine and keep your vehicle running at its best. 

  • Increase power and response
  • Extreme pressure and anti-corrosion protection
  • Extend component life
  • Protect engine during cold starts
  • Clean and prevent sludge/varnish deposits
  • Extend oil drain intervals

AR9100 also eliminates injection stiction problems in 6.0L and 7.3L Power Stroke engines.

  • Eliminate cold start and stiction problems
  • Clean and lubricate HEUI fuel injectors

Learn more about using AR9100 to eliminate stiction

For engines, limited slip differentials and motorcylces, use 1.2 oz of AR9100 per quart of conventional or synthetic oil.

For all Power Strokes, use 16 oz of AR9100 every oil change to eliminate & prevent stiction.

For gear oil, hydraulic oil and power steering fluid, use 3.2 oz of AR9100 per quart.

AR9100 is suitable for use in all Diesel & Gas engines. For 6.0L and 7.3L Power Stroke engines, AR9100 has the added benefit of eliminating stiction issues.

Oil alone fails to fully protect your engine, especially under tough conditions. AR9100 Friction Modifier enhances your motor oil’s properties to reduce wear, prevent corrosion, and extend engine life, keeping engines cleaner and running longer—a benefit for both new and high-mileage vehicles.

AR9100 helps clear deposits, reduce friction, and improve fuel efficiency, revitalizing performance. With our no-questions-asked 100% Money Back Guarantee, you can feel confident in the results.

Maximize Power with Advanced Friction Reduction

Excessive engine friction causes power loss, reduced fuel efficiency, heat, noise, and vibration, leading to wear and a less comfortable drive.

AR9100 provides vital lubrication to reduce wear and keep components running smoothly throughout the entire oil cycle and is proven to reduce wear by up to 43% in ASTM testing.

  • Smoother, quieter operation
  • Lower friction boosts power output
  • Reduced engine heat and vibration

Protect Your Engine with a Lubricating Shield

AR9100 creates a solid lubricating barrier that protects engines, gearboxes, and hydraulic systems under extreme pressure. Unlike zinc-based additives, it withstands high stress to enhance durability and performance.

In ASTM testing, AR9100 increased a branded lubricant's load-carrying ability from 3,964 lbs to over 4,500 lbs, significantly improving its anti-wear and friction reduction properties.

  • Provides strong anti-wear protection
  • Resilient under extreme pressure
  • Extends component life

Extend Oil Life for Greater Savings

AR9100 enhances the oxidative stability of engine oil, slowing degradation and extending oil drain intervals. By preventing sludge and deposits, it helps keep passages clear, leading to longer oil life and better engine health.

Blackstone Laboratories tests showed that oil with AR9100 had similar degradation at 10,000 miles as untreated oil at 5,500 miles.

  • Extends oil drain intervals
  • Reduces the buildup of sludge and deposits
  • Prevents costly maintenance

Does Your Truck Suffer From Stiction?

HEUI systems in 6.0L and 7.3L Power Stroke engines use oil pressure to build fuel pressure in the injectors, but heat and pressure degrade the oil over time, creating deposits in spool (or poppet) valves.

This static friction, or "stiction," can disrupt injector firing, leading to hard starts, rough idling, power loss, bucking, and smoke. The gradual build-up significantly impacts performance due to the unique HEUI design that subjects oil to extreme stresses. Symptoms include:

  • Sluggish starts
  • Rough operation
  • Reduced power until the engine warms up

Revive Your Injectors for Restored Power

AR9100’s advanced formula dissolves these deposits and forms a lubricating film that reduces friction within the injectors, restoring smooth operation.

  • Clears out deposits causing stiction
  • Reduces friction for smoother starts
  • Improves injector firing consistency
  • Enhances cold start performance

"Seeing this F-350 go from a cold-blooded, rough-running basket case to a truck that ran as smooth as it did the day it left the dealership definitely made believers out of us."

Unlock Your Engine’s Potential with AR9100

Stiction leads to power loss and reduced engine response, which can make your Power Stroke feel sluggish. By removing residue build-up and minimizing internal friction, AR9100 helps restore the engine's full potential, delivering more power and a smoother, more responsive drive.

  • Enhances power and throttle response
  • Minimizes lag from friction and wear
  • Restores engine performance
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive
AR9100 Oil Additive

AR9100 Oil Additive

$44.95
/
Size
  • Eliminate 6.0L and 7.3L Injector Stiction
  • Improve Power and Response
  • Increase Oil Drain Intervals

Customer Reviews

Based on 649 reviews
96%
(621)
3%
(21)
1%
(5)
0%
(2)
0%
(0)
S
Scott M.
Awesome

Awesome products.
Always on time.

E
Erik E.G. (Irving, TX, US)
Our 6.0 Super Duty is Shaking his 🕺🏻 Booty 💯

Archoil formula 9100 adds power and smoothness by reducing friction. Boosts in fuel ⛽️ efficiency and reduced heat under payload are a bonus! Testament to science 👩‍⚕️ 🧪 👨‍⚕️ 🧪 involved in its manufacture. There’s American 🇺🇸 Culture and Spirit in Soul of Archoil products. Consider making Archoil your Ultimate Choice-Brand for your Beloved Family vehicle. Dear Mr. Bill Hewitt 🪦 😢 is alive in our hearts in Dallas, Texas. His legacy continues to support us all in the Powerstroke realm. Bills gifts 🎁 of wisdom and experience are American 🇺🇸 Pride in top form. Archoil 9100 was his advice. Thank you Ladies and Gentlemen. We’re proud of our new found friends, keeping Slims Super Duty Shaking His Booty 😂! Cheers ☕️ ☕️ Y’all are incredible. Looking forward to ordering up again soon. 🔜 🛻 Slim loves his Archoil 9100. We love ❤️ his 6.0 American 🇺🇸 Heart.

M
Mike K. (Findlay, OH, US)
As advertised!

I can’t speak to how it works vs other brands…but it got rid of any stiction I had during cold starts. Use every oil change now and my 6.0’s run great!

a
angelo p. (Willow Grove, PA, US)
the best

this product lives up to its name i have a friend that's been using it ever sense he brought his 6.0 F350 and has over 600,000 miles and has had on issues with his truck under the hood other than battery replacement. so i run archoil products in my truck. i hear the engine sounds different more power great fuel economy and less regens. i would say its great products.

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AR9100 FAQs

To maintain the products benefits we recommend adding AR9100 to every oil change.

We recommend adding AR9100 at the time of your oil change.

Methods of adding AR9100 at an oil change include pre-treating your engine or pre-treating your oil. If your oil change is carried out at a shop, bring your bottle of AR9100 and ask the attendant to add the product.

For more detail on methods of adding AR9100, click here.

Yes, but if AR9100 is added to used oil which will be drained soon it would need to be replaced at the next oil change. If an oil change is coming up consider waiting until then to add AR9100 so it can be used for a full oil drain, or consider changing your oil when you add AR9100 so it goes in with fresh oil.

When adding AR9100 to used oil, make sure there is room by draining some oil out beforehand. Make sure not to add AR9100 to an already full crankcase, doing so will exceed your engines maximum oil capacity and can cause engine damage. If your dipstick shows that the oil is below the maximum mark, you can usually add AR9100 without draining oil out.

For all Power Strokes remove ½ a quart (16 oz) of oil from the engine before adding a 16 oz bottle of AR9100. If you are adding AR9100 during an oil change use less oil so there is room.

Yes. AR9100 is suitable for use in both synthetic and conventional engine oil.

No, We don't recommend using AR9100 in automatic transmissions.