ST. LOUIS, MO. (April 3, 2019): Engine oils must meet the new demands of vehicles as OEMs continue to push for improved performance. Gasoline direct injection (GDI) engines are able to operate at low speeds and high loads, allowing for greater fuel efficiency and higher power output.
However, these engines are not without their own complications. API SN PLUS was launched to combat phenomenon found in newer smaller displacement, higher compression, charged air induction and direct injected engines. GDI engines tend to run hotter and place more stress on the oil, which can increase oxidation and wear. The engines can experience timing chain stretch, which is the elongation of the chain, caused by wear to the chain’s components.
However, the major concern with GDI engines is low-speed pre-ignition (LSPI). Sometimes called “super knock” due to the noise made, LSPI is the spontaneous ignition of the fuel charge before compression is complete. LSPI can cause severe engine damage, and it can’t be solved by the use of higher-octane gasoline—as it was in the past. That’s why OEMs turned to the lubricant industry to help. The new SN PLUS oils are designed to protect against LSPI.
With Schaeffer’s SN PLUS oils, you get advanced oil performance that protects engines from LSPI and optimizes efficiency. Schaeffer’s oils are known for our proven friction modifiers, Micron Moly® and Penetro®, that reduce friction and wear. Our SN PLUS oils prevent metal-to-metal contact and damaging frictional wear. Further blended into our unique formula is a patented stable zinc anti-wear additive to provide even more protection against LSPI events.
Because newer engines are running hotter, stronger oxidation performance is needed from the oil to protect the engine throughout the oil interval. Made with advanced antioxidants and synthetic base oils, our SN PLUS oils are built to withstand higher temperatures and allow for longer oil life.
Schaeffer’s exceptional oxidation stability and thermal resistance also reduce high-temperature deposits that can block oil flow and cause wear. To further boost engine cleanliness, our SN PLUS oils use enhanced detergency and dispersancy additives to suppress the formation of deposits, sludge and varnish. Less buildup in the engine helps optimize engine performance and fuel economy and reduce emissions.
Extensive field tests show Schaeffer’s SN PLUS gasoline engine oils offer:
Schaeffer’s gasoline engine oil labels have been updated to display the API Resource Conserving SN PLUS donut.
Our fully synthetic oils meet and exceed API SN PLUS and are GM dexos1® Gen 2 compliant:
Our para-synthetic oils that meet and exceed API SN PLUS:
All vehicle owners will benefit from the enhanced performance possible with Schaeffer’s upgraded engine oils. The SN PLUS specification is backward compatible with API SN, and GM dexos1 Gen 2 is backward compatible with the Gen 1 version.
About Schaeffer’s Specialized Lubricants
Founded in 1839, Schaeffer’s Specialized Lubricants is a sixth-generation, family-owned company that delivers the right solution to every lubrication challenge. Schaeffer’s products provide strong engine durability and fuel economy benefits, allowing customers to maximize their equipment’s efficiency and return on investment.