Aerospace lubricant technology, now available for your engine! Introducing, PurOl's Onyx Series. PurOl Onyx Series is a premium break in oil is a specifically formulated blend to insure proper ring-seating and break-in of all internal engine components. This is an ideal break-in oil where a 0w20, 5w20, 5w30, 10w30 or SAE 30 is recommended as regular fill.
Some Unique Features and Benefits for your Engine:
Removes any contaminants left during the engine building process.
Premium protection of all internal engine components on initial start-up including pushrods, camshafts, flat tappet and roller rockers.
Focused break-in additive package includes: ZINC, PHOSPHOROUS AND MOLYBDENUM.
Excellent film for new bearing and journal protection
Fast piston ring seating
Cleans and Protects freshly machined surfaces
Blended from the Highest-Quality mineral base stocks.
SAE 30 Formula contains no viscosity modifiers and is compatible with petroleum and synthetic motor oils.
Recommended running of 30 minutes or longer in new, rebuilt engines for High Performance, Street, Restoration, Testing or Racing applications.
PurOl Onyx is also ideal as a dyno or "reference" oil during product testing.