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: 2026-07-22 Content revision: 2026-07-22	No successor recorded	API Motor Oil Guide and API 1509 current-documents index API Engine Oil Categories API Motor Oil Guide API 1509 current documents and edition history 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	Recorded current through: 2026-10-01 Source checked: 2026-07-22 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 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API SN API	Superseded	Content revision: 2026-06-22	API SP; API SQ	API category sequence on the linked API category and Motor Oil Guide pages API Engine Oil Categories API Motor Oil Guide 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GM dexos2 GM	Superseded	Content revision: 2026-07-16	dexosD for light-duty diesel; dexosR for gasoline	GM dexos official program lifecycle wording GM dexos official program The named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.