Standards lifecycle review
Internal staging ledger for source-linked standards status. It is not a public replacement table and does not establish vehicle compatibility. A record can move to the planned public reference only after editorial/technical review records a named decision.
Staged records
| Standard | Lifecycle status | Dates recorded | Successor wording | Evidence and guardrail |
|---|---|---|---|---|
| API SQ / ILSAC GF-7 API / ILSAC | Current | Effective: 2025-03-31 Source checked: 2026-09-05 Content revision: 2026-07-22 | No successor recorded | API 1509 GF-7 mark eligibility and SQ service-category introduction; gasoline categories only. API 1509 — 24th edition, July 2026 · 24th edition · July 2026 · §§5.2.2 and 5.3.2 · printed pp. 9–10 (PDF pp. 17–18)
Match the manual’s exact viscosity, category branch, and OEM approval. Newer status is not an automatic vehicle-level replacement. Review state: source-linked-awaiting-editorial-review |
| ILSAC GF-6 ILSAC | Current | Issuer retirement date: 2026-10-01 Source checked: 2026-09-05 Content revision: 2026-06-22 | API SQ / ILSAC GF-7 | API Motor Oil Guide transition guidance for GF-6A and GF-6B API Motor Oil Guide — 2025 edition · 2025-04-21 · p. 4 · ILSAC GF-6A/GF-6B rows and retirement footnote GF-6A and GF-6B are separate branches. Follow the exact branch and grade in the manual; status does not authorize cross-branch substitution. Review state: source-linked-awaiting-editorial-review |
| API SN API | Current | Source checked: 2026-09-05 Content revision: 2026-09-05 | API SP; API SQ | API Motor Oil Guide, 2025 edition, page 4: SN is Current. Successors describe chronology, not obsolete issuer status. API Motor Oil Guide — 2025 edition · 2025-04-21 · p. 4 · Gasoline Engines · SN / Current row
A category sequence is not a substitute for a manual or OEM approval. Confirm the exact requirement before choosing an oil. Review state: source-linked-awaiting-editorial-review |
| GM dexos2 GM | Superseded | Source checked: 2026-09-05 Content revision: 2026-07-16 | dexosD for light-duty diesel; dexosR for gasoline | GM dexos official program lifecycle wording GM dexos2 — official transition notice and licensed brands · Undated web notice; accessed 2026-09-05 · Transition notice immediately above Licensed dexos 2 brands The named replacements are not blanket approval for every legacy dexos2 vehicle. Engine, market, emissions equipment, viscosity, and current GM guidance still matter. Review state: source-linked-awaiting-editorial-review |
Promotion rule
- Confirm the issuer source, exact edition or live-page wording, and any published dates.
- Keep unknown edition, retirement, and vehicle-applicability data blank rather than inferring it.
- Record a named editorial/technical decision in the reviewer sign-off log.
-
Only then evaluate a public
/standards/status/reference and localized presentation.