4.9
Rated 4.9 out of 5 stars
1,430 Reviews

Prolube Oil Treatment, 1 Quart

$39.99

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Features
  • Increases horsepower, lowers operating temperatures, and helps reduce engine noise and vibration
  • Increases fuel economy with more frequent use
  • Specially formulated for heavy-duty high-temp engines
  • Conditions engine metal & metal components
  • Blends with all synthetic and petroleum-based oils
  • Works in gas or diesel engines instantly
  • Works in crankcases, transmissions (except CVTs), differentials, and power steering (see usage amounts below)
  • Doubles oil life, reduces oil consumption, slows blow-by pollution, reduces wear, eliminates dry starts
Treatment Ratio
  • Engine (1 oz of Prolube / 1 quart motor oil) For best results, use 2 oz of Prolube / 1 quart motor oil
  • Heavy Duty/High-Mileage Engine (3 oz of Prolube / 1 quart motor oil)
  • Differentials (1 oz of Prolube to 1 quart gear oil)
  • Gearbox (1 oz of Prolube / 1 quart of oil)
  • Power Steering Pump (1 oz of Prolube / 1 quart of oil)
  • Automatic Transmission: 3 oz MAX
  • Manual Transmission (1 oz of Prolube / 1 quart transmission fluid)

Do NOT use in:

• Brakes

• Radiators

• CVTs (continuously variable transmissions)

Applications
  • Racing
  • Cars
  • Trucks
  • Semis
  • Motorcycles
  • Side-by-sides
  • ATVs
  • Dirt Bikes
  • Marine
  • Tractors
  • Outdoor Lawn Equipment
  • Machinery

Give your engine the love that it deserves

Boost performance, save money, and extend engine life with Prolube Oil Treatment.

Unlock your engine's true potential

Experience increased horsepower, smoother operation, and reduced noise and vibration. Feel the difference in every drive!

Save Money, Drive Further

Tired of filling up so often? Prolube helps you go further on each tank, saving you money at the pump. Fill up less, drive more!

Built for Tough Conditions

You like pushing your engine to the limit? Prolube's specialized formula provides extra protection under demanding conditions. Drive confidently, no matter the journey.

Extend Your Engine’s Life

Keep your engine running strong and save money on repairs. Prolube conditions metal components, doubles oil life, and minimizes wear. Invest in your ride, choose Prolube!

Works Everywhere You Use It!

No matter the engine, Prolube Oil delivers.

Cars

Motorcycles

Trucks

Side-by-sides

Tractors

Boats

Machinery

Real People, Real Results!

See drivers sharing their experiences with Prolube Oil Treatment.

GOOD STUFF

"Got noticeable vibration reduction and what seem to be less blow by. Also used it in two 350 CI motors, and it seems to really help them run noticeably smoother"

DARNELL FARMS - North Carolina, USA

PROLUBE I’LL PUT THAT SH*T IN EVERYTHING!!!

"Boy was I blown away, this is the catsmeow. My truck feels completely different. I could tell the difference as soon as I hit the road I have smother shifts. I’ll be a lifetime return customer."

JUSTIN M. - South Carolina, USA

GREAT STUFF

"Tried just about everything on the market, after putting this in an engine and listening to a lifter tick disappear it shocked me. Honestly have never listened a tick just go away and stay away. Great stuff. Will be ordering lots in the future."

ALEX J. - North Carolina, USA

GREAT PRODUCT A+

"I used a vibration sensor that’s 4-20ma, 4=0 inch per second and 20ma = 1 inch per second movement. After adding Prolube the engine vibration did decrease some. Went from 7.000ma to 6.833ma after adding Prolube."

JASON M. - Oklahoma, USA

4.9
Rated 4.9 out of 5 stars
Based on 1,430 reviews
Total 5 star reviews: 1.4k Total 4 star reviews: 44 Total 3 star reviews: 17 Total 2 star reviews: 3 Total 1 star reviews: 3
98%would recommend this product
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1,430 reviews
  • MT
    Matthew T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 days ago
    Amazed

    Second day I notice my engine temp drop by 15 degrees. Good product,I already reordered.

  • JB
    Jason B.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 days ago
    Noisy lifters

    Great product. Lifters are much quieter now than before.

  • MR
    Mark r.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Great product

    Engine is definitely quieter ! The 5.4 rattle is gone

  • GS Profile picture for Gary S.
    Gary S.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    1 week ago
    Prolube went in a 2005 Chevy extra cab pickup 4.8. it also went in a 2020 Toyota 4Runner 4.0 with 40,000 mi on it And it also went in a 2007 Jeep Wrangler 3.8 with 163,000 mi and a result is last summer my Jeep ran smooth and cooler... In Arizona it gets extremely hot here and I will do whatever it takes to keep my vehicles happy and prolube is part of that

    I put it in all three of my vehicles and it's a piece of mind knowing that I have extra insurance for my vehicles to have the proper lubrication and they need to run cool and smooth

  • PG
    Paul G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Absolutely amazing results

    We started using Amsoil products in our shop for our vehicles and forklifts. After seeing great results from using higher quality lubricants, we thought we should make them even better, and boy I tell you what, HUGE difference in the performance of our forklifts! The engines run even smoother and the company truck is getting even better gas mileage! When we need to, we will be ordering more for future maintenance and personal use!

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Others

Doubles Oil Life & Reduces Consumption

Quiets & Smoothes Noisy Engines

Works in Gas & Diesel Engines Instantly

Increases Fuel Economy with More Frequent Use

Reduces Engine Wear at Startup

Got Questions? We Have Answers!

How often should I use Prolube Oil Treatment?

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

How much Prolube do I add to my oil?

Treatment Ratio:

  • Engine (1 oz of Prolube / 1 quart motor oil) For best results, use 2 oz of Prolube / 1 quart motor oil
  • Heavy Duty/High-Mileage (3 oz / 1 quart motor oil)
  • Differentials (1 oz of Prolube to 1 quart of gear oil)
  • Gearbox (1 oz of Prolube / 1 quart of oil)
  • Power Steering Pump (1 oz of Prolube / 1 quart of oil)
  • Automatic Transmission: 2 oz MAX of Prolube Oil Treatment
  • Manual Transmission: 1 oz of Prolube / 1 quart of transmission fluid
Do I need to drain some oil out before adding Prolube Oil Treatment?

When adding Prolube Oil Treatment to used oil, make sure there is room by draining some oil out beforehand. Make sure not to add Prolube Oil Treatment 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 Prolube without draining oil out.

Is Prolube Oil Treatment compatible with regular and synthetic oil?

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

Is it OK to use Prolube Oil Treatment in motorcycles with wet clutches?

Yes, use 1 oz of Prolube per quart of engine oil in motorcycles with wet clutches. Check the owner's manual beforehand to ensure it does not specify against the use of friction modifiers.

Will Prolube Oil Treatment void my warranty?

No. The Magnuson-Moss Warranty Act allows consumers to use additives of their choice without voiding their warranty except for specific additives that have been noted as incompatible. Vehicle manufacturers are not allowed to void the vehicle warranty just because aftermarket parts or additives are on or in a vehicle.

Should my motor be broken-in prior to using Prolubee?

Yes, we recommend following your engine manufacturer's break-in period before adding Prolube Oil Treatment.