AMSOIL SYNTHETIC Break-In Oil is an SAE 30 viscosity grade 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 The Very Important Ingredients For Jeeps Zinc & 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 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. 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.
THIS AMSOIL SYNTHETIC BREAK-IN OIL IS CORRECT & RECOMMENDED FOR ALL JEEP CJ'S & SCRAMBLERS,WILLY'S,MB'S,WRANGLERS,COMMANDO'S & JEEPSTERS FROM 1945-1995 & THIS WILL ALSO WORK FOR ALL JEEP GRAND WAGONEERS & FULL SIZE WAGONEERS & CHEROKEES,CHEROKEE CHIEFS,JEEP J-10 & J-20 & J3000 PICK-UP TRUCKS,GLADIATOR,SUPER WAGONEERS & REALLY ANY JEEP FROM 1963-1991 THAT RECENTLY JUST HAD NEW UPPER & OR LOWER ENGINE WORK & NEEDS THE FIRST OIL TO BE ADDED & BE BROKEN IN.
WE HIGHLY RECOMMEND USING THIS AMSOIL BREAK-IN OIL IN THE FIRST 1000 MILES & THEN SWITCHING TO AMSOIL SYNTHETIC 10W40 OIL W/ZINC ADDITIVE FROM THERE ON OUT.
WE ALSO HIGHLY RECOMMEND AMSOIL ASSEMBLY LUBE WHEN PUTTING YOUR ENGINE TOGETHER ESPECIALLY THE CYLINDER HEAD(S) AS THIS WORKS MUCH BETTER THAN STANDARD OIL.
THIS AMSOIL BREAK-IN SYNTHETIC OIL WILL BE SOLD AS EACH 1-QUART BOTTLE.
WE HIGHLY RECOMMEND GETTING 6-QUARTS TO COMPLETE YOUR OIL CHANGE & 5-QUARTS FOR THE 4-CYLINDER ENGINES.
AMSOIL OIL PART# BRKQT
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