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Introduction: What Is API SQ?
The American Petroleum Institute (API) defines API SQ as the latest engine oil performance category succeeding API SP. According to API, SQ oils are formulated to protect modern Turbocharged Gasoline Direct Injection (TGDI) engines from Low-Speed Pre-Ignition (LSPI), ensure Gasoline Particulate Filter (GPF) durability, and improve fuel economy. This official definition underscores a rigorous test suite including LSPI sequence, high-temperature shear stability, and deposit control.
View API’s official web:
API’s Official Definition and Scope
Per API documentation, the SQ category requires:
1.Sequence X LSPI Test: New protocol to measure resistance to low-speed pre-ignition.
2.High-Temp High-Shear (HTHS) Viscosity ≥ 2.9 mPa·s: Maintains oil film under load.
3.Oxidation Stability: Limits oil degradation at 150 °C.
4.Deposit Control: Minimizes piston and turbo deposits.
5.Sulfated Ash ≤ 0.90%: Ensures GPF and engine protection.
6.Fuel Economy: Aligns with ILSAC GF-7 efficiency metrics.
These parameters reflect API’s commitment to reducing emissions and extending engine life in high-performance vehicles.
Key Upgrades Over API SP
API SQ builds on API SP by adding:
1.LSPI Protection: Critical for TGDI engines common in global markets.
2.GPF Compatibility: Lower ash content to protect aftertreatment systems.
3.More Stringent Oxidation Tests: Improves oil longevity and engine cleanliness.
Together, these upgrades make api sq oil the gold standard for next-gen lubricants.
TERZO’s API SP Engine Oils
TERZO leverages API’s data-driven approach to develop api sp engine oil offerings:
SynthGen Series: Ester-enhanced base oils delivering exceptional HTHS resistance.
4T Super 10W-40 Blend: Tailored for motorcycle and small-engine applications needing LSPI mitigation.
Multipure 5W-30 GPF-Safe: Ideal for passenger cars with pump-injector diesel engines.
Explore our Products for API qualified lubricants.
Real-World Applications in Global Markets
API SQ oils excel in:
1.African logistics fleets tackling extreme heat.
2.Southeast Asian urban buses facing stop-start traffic.
3.South American mining equipment operating under heavy load.
4.Central Asian construction machinery enduring altitude and dust.
By adopting api sq oil, operators reduce maintenance costs and meet emerging emission mandates.
Implementation & Distributor Support
TERZO assists distributors with:
1.API SQ training workshops: On-site and virtual seminars.
2.Supply chain optimization: Local warehousing in Lagos, Jakarta, and Bogotá.
3.Marketing materials: Co-branded collateral highlighting SQ benefits.
Contact our Services team to get started.
The API SQ standard represents a pivotal advancement in lubricant technology. By integrating API’s official definitions and test methods, TERZO’s API SQ engine oils deliver unmatched LSPI protection, GPF compatibility, and fuel efficiency for global users.
Stay ahead—equip your fleet and customers with API SQ–certified solutions from TERZO.
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