API SP AND ILSAC GF-6
What’s the big deal?
Valvoline says stricter emission and economy regulations around the world have driven leading car manufacturers to introduce newer, more powerful and more efficient engines; Gasoline Direct Injection (GDI) and Turbocharged Gasoline Direct Injection (TGDI).
These engines need a higher specification engine oil in order to protect them from “Low Speed Pre-Ignition” or LSPI.
Valvoline explains that in simple terms, LSPI is early combustion in the engine which can lead to catastrophic engine failure. Preventing LSPI requires improvements in engine lubrication chemistry.
It is all about efficiency
In order to meet emission and fuel economy regulations, vehicle manufacturers have made a number of changes to their engine designs. These include downsizing, introducing gasoline direct injection (GDI), turbocharging and gasoline particulate filters (GPF).
Most new passenger cars and light commercials from leading vehicle manufacturers come with these new generation engines. The needs of these engines are different and require higher-performance engine oils that aid in fuel economy, provide emission system compatibility, protect against low speed pre-ignition (LSPI) and aid cleanliness by fighting turbocharger deposits.
Protect your vehicle
Vehicle owners have an expectation that the engine oil used will protect their car engine and meet its lubrication requirements. However, Valvoline says it is important to note that older oil specifications such as API SN/ILSAC GF-5 and earlier will not meet all the performance needs of these modern engines.
While ILSAC GF-5 addresses fuel economy and deposit control, for these modern engines, LSPI protection is also required. Engine oil needs to deliver on all three of these important performance characteristics.
Valvoline explains that LSPI is an abnormal, uncontrolled combustion event that can occur in modern Gasoline Direct Injection (GDI) and Turbo Gasoline Direct Injection (TGDI) engines.
At a minimum, LSPI can generate an audible knocking noise noticeable to the driver and prevent the engine from operating at optimum efficiency. More severe LSPI can cause engine hardware failure, including damaged spark plugs, pistons and even catastrophic engine failure, leading to user disruption and high vehicle repair costs.
Valvoline says that usage of older generation engine oils (API SN/ILSAC GF-5) in such modern engines can lead to catastrophic engine damage. Industry bodies have recognised this and have launched the ILSAC GF-6, a new specification which is designed specifically to protect modern engines.
To demonstrate the difference, a field trial was conducted in two identical cars – both having modern gasoline engines. One car was filled with older generation engine oil and other with ILSAC GF-6 oil. A comparison of their pistons (pictured below) clearly showed the impact the wrong engine oil can have on engine components.
Valvoline says it is ready
Valvoline says its products with ILSAC GF-6 specifications have been available to the market since the first license date in May 2020. In November, Valvoline also upgraded numerous engine oils to API SP to ensure its customers benefit from the latest industry specifications.
A step-up in quality
Valvoline engine oils with ILSAC GF-6, will see a significant boost in performance characteristics; reformulated to pass stringent engine tests for fuel economy, LSPI, chain wear, sludge and varnish, oxidation and deposits, wear and corrosion limits. Chart one shows the benefits vehicle owners can expect over earlier generation GF-5 oils.
Similar to the ILSAC GF-6 changes, Valvoline says its engine oils with API SP will be a significant boost in performance characteristics. These have been reformulated to pass stringent engine tests for LSPI, chain wear, sludge and varnish formation, oxidation and deposits, wear and corrosion limits. Chart two explains the benefits vehicle owners can expect over earlier generation API oils.
For more information on Valvoline engine oils, or to place an order, contact Valvoline Customer Service on 1800 458 237 or its Technical Hotline on 1800 804 658.