Friction-modifier-free formula helps rings seat properly for maximum compression and reduced blow-by. Excellent film strength and proprietary anti-wear additive package help ensure cams and bearings are protected during break-in. Delivers competition-quality engine preparation.
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Product data sheets
View, download, or save a copy of the Product Data Sheet or Safety Data Sheet for Freedom Series Break-In Oil.
Freedom Series Break-In Oil (FDBRK) is an SAE 30 break-in formulation developed with Fleece Performance Engineering and Freedom Racing Engines for new and freshly rebuilt high-performance and racing engines. The friction-modifier-free chemistry is built to seat piston rings quickly while the high zinc and phosphorus additive package protects camshafts, lifters, rockers, rods, and main bearings during the critical break-in period when wear rates are highest. Freedom Series products are available exclusively through the Authorized Fleece Performance and AMSOIL Dealer networks.
Fleece Performance co-development
Freedom Series Break-In Oil is the preferred break-in oil of Fleece Performance Engineering and Freedom Racing Engines, who have been running this AMSOIL formulation in their builds for years. The high horsepower and torque produced by those engines have validated the formula across repeated builds. Freedom Series Break-In Oil is for engine builders who want to push limits without sacrificing proper break-in.
Seats piston rings quickly
The primary goal during engine break-in is to seat the rings against the cylinder wall. Properly seated rings increase compression and maximum horsepower, reduce oil consumption, and prevent hot combustion gases from entering the crankcase. To achieve this, the oil must allow the correct level of controlled wear between the cylinder wall and ring interface while still protecting other critical engine parts. Insufficient break-in leaves sharp peaks on the cylinder wall that prevent rings from seating, and the deep valleys collect excess oil that burns during combustion. Too much wear glazes the cylinder when peaks roll over into the valleys and starve the wall of lubrication.
The friction-modifier-free formula in Freedom Series Break-In Oil allows sharp peaks on newly honed cylinder walls to partially flatten. The result is more surface area for rings to seat against, allowing the formation of a dynamic seal that increases compression, horsepower, and torque.
High-zinc protection for flat-tappet cams and lifters
New flat-tappet camshafts and lifters are not seasoned or broken in and must be heat-cycled to achieve proper hardness. During break-in these components are susceptible to accelerated wear because they are splash-lubricated, unlike pressure-lubricated parts elsewhere in the engine. Freedom Series Break-In Oil contains high levels of zinc and phosphorus (ZDDP) anti-wear additives designed to provide the protection these parts require during the critical break-in window. Four-Ball Wear performance is rated at a 0.43 mm scar (ASTM D4172, 40 kg, 75 C, 1200 rpm, 1 hour).
Increased film strength for rod and main bearings
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 Freedom Series Break-In Oil deliver increased film strength to protect bearings from wear, with a high-temperature/high-shear viscosity of 3.6 cP (ASTM D-5481 at 150 C, 1.0 x 10^6 S-1) supporting the load-carrying film at elevated operating temperatures.
SAE 30 grade with stable viscosity
Freedom Series Break-In Oil is an SAE 30 grade with a kinematic viscosity of 11.5 cSt at 100 C and 93 cSt at 40 C (ASTM D445), a viscosity index of 111 (ASTM D2270), a flash point of 230 C, 446 F, and a fire point of 250 C, 482 F (ASTM D92). The pour point is -36 C, -33 F (ASTM D97). This combination provides controlled break-in viscosity without the friction modifiers that can interfere with ring seating.
Recommended applications and service intervals
Freedom Series Break-In Oil is designed to effectively break in Freedom Racing Engines and other high-performance and racing engines, helping maximize compression, horsepower, and torque. The recommendations below come directly from the product Data Bulletin.
Freedom Racing Engines: follow the Freedom Racing Engines break-in procedure linked from the product Data Bulletin.
Other engines: follow the engine-builder or manufacturer break-in recommendations when available.
All other applications: the break-in period should not exceed 1,000 miles (1,600 km).
After break-in: drain and fill the engine with a high-performance AMSOIL synthetic oil that meets builder or manufacturer specifications, such as Freedom Series Synthetic Diesel Oil.
Freedom Series Break-In Oil is formulated specifically for the break-in window and is not intended for service beyond that period. Aftermarket oil additives are not required during break-in with this product. Pair the break-in fill with a high-efficiency full-flow oil filter sized to the engine, and confirm application match for the post-break-in oil with the vehicle lookup tools below.
High-Temperature/High-Shear Viscosity, cP (ASTM D-5481 at 150 C)
3.6
Order Freedom Series Break-In Oil
Freedom Series Break-In Oil is available in a quart bottle (FDBRKQT-EA) and a case of twelve quarts (FDBRKQT-CA). Using AMSOIL synthetic lubricants does not void a new vehicle or equipment manufacturer warranty, and all AMSOIL lubricants and filters are covered by the AMSOIL Limited Warranty. Confirm application match of the post-break-in oil with the AMSOIL Vehicle Lookup Guide, compare candidates in the AMSOIL Car Oil Guide, then order Freedom Series Break-In Oil.
Frequently asked questions
What is engine break-in oil and why does it matter?
Engine break-in oil is a short-service formulation used during the first hours and miles of a new or freshly rebuilt engine. It allows the controlled wear required to seat piston rings against newly honed cylinder walls while still protecting splash-lubricated parts like flat-tappet camshafts and lifters. Standard service oils contain friction modifiers and additive packages that can delay or interfere with ring seating during this window.
How long should Freedom Series Break-In Oil stay in the engine?
For Freedom Racing Engines, follow the Freedom Racing Engines break-in procedure linked from the product Data Bulletin. For other engines, follow the engine-builder or manufacturer break-in recommendations when available. For all other applications, the break-in period should not exceed 1,000 miles (1,600 km). After break-in, drain and fill the engine with a high-performance AMSOIL synthetic oil that meets builder or manufacturer specifications, such as Freedom Series Synthetic Diesel Oil.
Does Freedom Series Break-In Oil contain zinc (ZDDP)?
Yes. Freedom Series Break-In Oil contains high levels of zinc and phosphorus (ZDDP) anti-wear additives designed to protect cam lobes, lifters, and rockers during the critical break-in period when wear rates are highest, with additional film strength to protect rod and main bearings.
Is Freedom Series Break-In Oil only for flat-tappet engines?
Freedom Series Break-In Oil is designed to effectively break in Freedom Racing Engines and other high-performance and racing engines. The high-ZDDP chemistry is especially important for new flat-tappet camshafts and lifters that must be heat-cycled during break-in, but the formula is built for high-performance and racing engine break-in in general.
Does running a break-in oil void a new vehicle warranty?
No. Using AMSOIL synthetic lubricants or practicing extended drain intervals does not void a new vehicle or equipment manufacturer warranty, and all AMSOIL lubricants and filters are covered by the AMSOIL Limited Warranty. For engines under an engine-builder break-in procedure, follow that procedure exactly.
What oil should follow Freedom Series Break-In Oil?
After completing break-in, drain and fill the engine with a high-performance AMSOIL synthetic oil that meets builder or manufacturer specifications, such as Freedom Series Synthetic Diesel Oil. Use the linked guides above to confirm the correct viscosity and category for the engine before refilling.
Where can Freedom Series Break-In Oil be purchased?
Freedom Series products are sold through the Authorized Fleece Performance and AMSOIL networks. The quart and case-of-twelve buttons send you to the AMSOIL product page where you can confirm current pricing and place the order.
