Break-In Oil (SAE 30)
Product code : BRKQT-EA
Designed for High-Performance and Racing Engines
Formulated without friction modifiers to allow for quick and efficient piston ring seating in new and rebuilt high-performance and racing engines. Contains zinc and phosphorus anti-wear additives to protect cam lobes, lifters and rockers during the critical break-in period when wear rates are highest.
Formulated without friction modifiers to allow for quick and efficient piston ring seating in new and rebuilt high-performance and racing engines. Contains zinc and phosphorus anti-wear additives to protect cam lobes, lifters and rockers during the critical break-in period when wear rates are highest.Warning - Click here for Proposition 65 information for this product
Break-In Oil (SAE 30)
AMSOIL Break-In Oil is an SAE 30 oil formulated without friction modifiers to allow for quick and efficient piston ring seating in new and rebuilt high-performance and racing engines. It contains zinc and phosphorus anti-wear additives to protect cam lobes, lifters and rockers during the critical break-in period when wear rates are highest, while its increased film strength protects rod and main bearings from damage. AMSOIL Break-In Oil is designed to increase compression, horsepower and torque for maximum engine performance.
- Quickly seats piston rings
- Increased zinc and phosphorus protect against wear
- Maximizes compression and power
Quickly Seats Rings
The primary goal during engine break-in is to seat the rings against the cylinder wall. Properly seated rings increase compression, resulting in maximum horsepower; they reduce oil consumption and prevent hot combustion gases from entering the crankcase. To achieve this, however, the oil must allow the correct level of "controlled wear" to occur between the cylinder wall/ring interface while maintaining wear protection on other critical engine parts. Insufficient break-in leaves behind peaks on the cylinder wall that prevent the rings from seating. The deeper valleys, meanwhile, allow excess oil to collect and burn during combustion, increasing oil consumption. Too much wear results in cylinder glazing due to peaks "rolling over" into the valleys and preventing oil from collecting and adequately lubricating the cylinder wall.
AMSOIL Break-In oil's friction-modifier-free formula allows the sharp peaks on newly honed cylinder walls (fig. 1) to partially flatten. The result produces more surface area for rings to seat against, allowing formation of a dynamic seal that increases compression, horsepower and torque (fig. 2).
Protects Critical Parts from Wear
New flat-tappet camshafts and lifters are not seasoned or broken in and must be heat-cycled to achieve proper hardness. During the break-in period, these components are susceptible to accelerated wear because they are splash-lubricated, unlike other areas of the engine that are pressure lubricated. AMSOIL Break-In Oil contains high levels of zinc and phosphorus (ZDDP) additives designed to provide the anti-wear protection required during this critical period.
Increased Film Strength
High-performance and racing engines often use aftermarket parts designed to increase torque and horsepower. The added stress can rupture the oil film responsible for preventing harmful metal-to-metal contact on rod and main bearings. The base oils in AMSOIL Break-In Oil provide increased film strength to protect bearings from wear.
AMSOIL Break-In Oil is designed to effectively break in high-performance and racing engines requiring SAE 30 oil, helping maximize compression, horsepower and torque.
The engine builder's or manufacturer's break-in recommendations should be followed if available. Break-in period should not exceed 1,000 miles. When the engine is new, the exhaust ports will have a large area of oil residue (Fig. 3). As the rings begin to seat, less oil is passed and the oil residue area begins to shrink (Fig. 4). When the rings are fully seated and have formed a tight seal against the cylinder walls, no oil residue will be evident. Other common methods to determine if rings have seated include performing a leak-down test or horsepower measurements over time. Break-in duration will vary between engines. Afterward, drain and fill the engine with an AMSOIL high-performance synthetic oil that meets builder or manufacturer specifications.
HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available via the Internet at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Don't pollute. Return used oil to collection centers.
For warranty information, visit www.amsoil.com/warranty/.
*All trademarked images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.
Break-In Oil (SAE 30)
Break-In Oil (SAE 30)
By  a  Verified Buyer  on  September 16, 2020I always use it to brake in engines
Break-in OilBy  rrobins,  a  Verified Buyer  from  OK  on  February 13, 2019I would not treat my engine to anything less then this Amsoil break-in oil.
Great productBy  Charles,  a  Verified Buyer  from  Norwood NC  on  January 31, 2019We are a military vehicle rebuild / restoration shop. We build a lot of engines, AMSOIL 30W break-in oil goes into every new engine we build.
YesBy  Bill,  a  Verified Buyer  from  Wabash indiana  on  July 03, 2018Engine building
Highly recommend productBy  Jr,  a  Verified Buyer  from  Baytown  on  July 02, 2018I used the engine break in oil for my freshly build LS motor.....
I am definately impressed! Great products!By  Slim,  a  Verified Buyer  from  NE  on  June 05, 2018Glad they have an oil for older flat tappet cam vehicles.
Great productBy  Corvairguy,  a  Verified Buyer  from  Peoria IL  on  April 18, 2018I use it in every new engine.
This break in oil is great for new enginesBy  mr. classic,  a  Verified Buyer  from  Mobile, AL  on  April 11, 2018I just had an engine rebuild on my '62 Ford Galaxie and the mechanic put Delo 10W40 in the motor for break in. It is the nature of a rebuild job for an engine to use oil and I had added 2 qts already then it dawned on me about the break in oil so I ordered some pretty quick. There was a little smoke from synthetic oil which I expected but that happened twice, no more smoke. No more oil consumption and the rings were set pretty quick and when the car comes back from the shop, I have the Amsoil Z-Rod for classic cars waiting on it.
Definitely use every time I fire up a new engine.By  Randy,  a  Verified Buyer  from  Daleville, IN  on  January 29, 2018No negatives here. Excellent break-in oil. And I will be using Amsoil 20w-50 for muscle cars when the time comes.
Totally RecommendBy  Hayden Huff,  a  Verified Buyer  from  Butler, PA  on  January 28, 2018I rebuilt my 2013 WRX motor and used this oil as a break in oil. When I drained the fluid, it was nice and light colored enough I could see if anything was in my oil. 2500 miles on my car now and still going strong with nothing other than Amsoil products.