To meet the standards required to protect an older motor you ll want to look for a zddp level of between 1 000 ppm and 1 400 ppm with a similar rating for zdtp phosphorus content.
Zinc oil additive advance auto.
According to valvoline its primary role is to prevent metal to metal contact between engine parts by forming a protective film.
There are a couple of chemicals that are essential to a good oil additive for your car engine.
Fortunately there are zddp additives available on the shelves at your local advance auto parts or online.
Oil treatment is especially helpful for improving the performance of aging vehicles reducing engine noise reducing fuel consumption and reducing wear and tear on vital engine components.
High zinc motor oil usually refers to street or racing oils that have a higher concentration of zinc and phosphorus based additives not zinc alone.
Engine break in oil has high film strength and contains higher levels of zinc and phosphorus in order to provide a more efficient ring seal and better protection against initial start up wear.
Many similar additives are also used in conventional motor oil in order to enhance lubrication qualities with the help of ingredients such as molybdenum and boron.
Normally used in synthetic oil compounds like zinc di thiophosphate zdtp have been used as anti wear additives for many years.
Zinc oil additive content or zddp is typically expressed in parts per million ppm.
It wasn t long before petroleum companies added it to their motor oils to inhibit wear in automotive engines.
The advantages of using oil with high zinc content.
It mostly benefits older engines.
Zinc dialkyl dithiophosphate is a silicate based lubricating compound developed in the 1940s that was first used in airplane engines.
Phosphorus limits metal to metal friction in engines.
Regardless if you are purchasing off the shelf oil for your classic car ilsac multi viscosity oils rated sm or cj 4 should have stated zinc and phosphorus additive supplements for use in older engines or an additional separate additive should be purchased and used with the new oil.
O reilly auto parts keeps a wide range of oil treatment products in stock so you can quickly and easily find the best product for your vehicle.
O reilly auto parts carries a variety of break in oils to give your new engine the support it needs to perform its best for years to come.
Zddp also exhibits mild extreme pressure protection.
Zinc in motor oil usually is describing a compound called zinc dialkyl dithiophosphates or zddp.
It contains both zinc and phosphorus components that work together to provide anti wear protection and minimize lubricant breakdown.
Zinc in oil additives acts as a performance booster.
Zinc dialkyldithiophosphate zddp is the most commonly used anti wear additive in motor oils.