The API SQ lubricant standard—March 31, 2025, revolutionize motor oil performance requirements. Building upon API SP, this standard addresses modern Turbocharged Gasoline Direct Injection (TGDI engine oil) demands with stricter low-speed pre-ignition oil specifications and enhanced fuel economy lubricant properties.
Why SQ? Meeting TGDI & LSPI Challenges
Turbocharged GDI engines suffer from LSPI protection failures, leading to knocking and piston damage. API SQ mandates new tests to prevent low-speed pre-ignition and impose an x-sequence chain wear test to safeguard timing chains. These upgrades ensure oils can withstand higher temperatures and pressures, reducing costly repairs.
Aligning with ILSAC GF-7 & GPF Protection
API SQ matches ILSAC GF-7 in controlling deposits and improving GPF protection. By capping sulfate ash at 0.9%, SQ oils help safeguard gasoline particulate filters—essential for compliance with upcoming EPA emissions standards for 2026 model vehicles.
Core SQ Requirements Breakdown
1.LSPI Resistance: Prevent engine knock in TGDI engines
2.Chain Wear Test (x-sequence): Extend timing-chain life
3.High-Temp Oxidation Stability: Maintain viscosity under stress
4.Deposit Control: Reduce sludge and varnish
5.Low-Temp Flow: Ensure quick lubrication at startup
6.Sulfated Ash Limit (≤0.9%): Protect GPFs
7.Fuel Economy Performance: Contribute to EPA targets
TERZO’s R&D Response
At TERZO, our 4T Super 10W-40 and SynthGen Series oils have long prioritized anti-LSPI additives and chain-wear inhibitors. We’re accelerating R&D to fully validate our formulations against SQ tests. By partnering with global OEMs and leveraging our hydrocra- cked base-stock expertise, TERZO aims to launch API SQ-certified oils immediately upon standard approval.
Product Highlights: Ready for SQ
SynthGen 5W-30 PAO: Low-viscosity, strong deposit control
Specialsynth 10W-40: High-temperature stability, superior shear resistance
SuperSynth 0W-20 FE: Ultra-low friction for maximum fuel economy
These oils already exceed SP benchmarks and are being reformulated to meet or surpass API SQ. Interested distributors can request early samples for evaluation.
Click to View our full Products Catalog.
Industry Impact & Market Trends
The shift to SQ will prompt fleet managers and dealers to upgrade to certified oils. Keywords like fuel economy lubricant and GPF protection oil are trending as operators seek compliance and savings. Early adopters can differentiate by offering SQ-ready products, capturing market share in Southeast Asia, Africa, and Latin America.
TERZO’s quality team is coordinating with independent labs to secure first-wave SQ approvals. We recommend distributors update stocking plans now to include API SQ lubricant standard oils by 2025.
How to Partner with TERZO
Distributors and OEM partners can leverage TERZO’s global logistics, local warehousing, and technical training. Our support includes:
1.Customized packaging for regional markets
2.Technical workshops on LSPI and chain-wear mitigation
3.Marketing collateral emphasizing SQ advantages
Contact our team to discuss volume pricing and partnership terms.
Driving the Next Generation
The API SQ lubricant standard sets a new benchmark for motor oils, focusing on LSPI protection, x-sequence chain wear, and GPF compliance. TERZO’s proactive reformulation and robust testing ensure our products lead this transition. Embrace this new era by stocking SQ-certified oils, educating your customers, and staying ahead in the rapidly evolving lubrication industry.
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