Aircraft Oil Change Log
Aircraft Oil Change Log with structured readings per session — build the longitudinal trend record that single measurements can't provide.
The filter cut at every change is the cheapest borescope there is — metal in the pleats announces problems hundreds of hours before symptoms.
No entries yet — add your first one above. Data stays in your browser.
⚠️ Not for operational decisions. This is a record-keeping and planning aid only — not certified avionics, not a source of regulatory truth. Always verify against official sources (FAA) and your operator's approved documents before flying.
Free aircraft oil change log: structured per-session readings that build the trend record — because the filter cut at every change is the cheapest borescope there is.
About Aircraft Oil Change Log
GA guidance: 50-hour intervals with a filter (25 without), and oil changes are owner-performable preventive maintenance under Part 43 Appendix A with a proper log entry. The corollary: the filter cut at every change is the cheapest borescope there is — metal in the pleats announces problems hundreds of hours before symptoms. This log enforces the structure that makes trends readable — the same fields every session, dated, per aircraft — so the comparison that diagnosis depends on is a glance at the table instead of a dig through shop invoices and memory. Export the CSV before any maintenance conversation and your mechanic starts from data.
How to use Aircraft Oil Change Log
- 1Log the structured readings after each flight, sample or service event.
- 2Scan the table for drift against your own baseline before reacting to single values.
- 3Export the trend record for your mechanic, engine shop or analysis lab.
Why use Aircraft Oil Change Log?
- ✓Identical structured fields every session — trends stay comparable
- ✓Per-aircraft/engine separation for multi-aircraft owners
- ✓12-month activity tile shows whether the record is staying alive
- ✓Captures the signal that matters: the filter cut at every change is the cheapest borescope there is
- ✓CSV export turns maintenance conversations into data reviews
Frequently asked questions
Can I legally change my own aircraft oil?+
Yes — oil changes are preventive maintenance under Part 43 Appendix A(c), performable by the owner of a Part 91 aircraft holding at least a private certificate, PROVIDED you make a proper maintenance record entry: description, date, signature and certificate number. The entry is what makes it legal; this log keeps the supporting details (oil, filter inspection, quantities) so the logbook line is backed by a real record.
How often should these readings be logged to be useful?+
Often enough that the series outweighs the noise: every oil change for analysis-type records, every flight or weekly for monitor-derived numbers, every annual for inspection-type checks. The honest rule is consistency over frequency — six identical-format entries a year beat sporadic bursts, because trend reading depends on comparable conditions and unbroken sequence more than on raw volume.
What happens to my entries if I clear my browser?+
Clearing site data deletes locally stored entries — that's the price of a genuinely private, server-free design. Protect yourself with the one-click CSV download before any cleanup, OS reinstall or device change: re-importing history later beats reconstructing it from memory.
Can I get my data out if I switch systems later?+
Always — the CSV export is a complete, lossless dump of your engine condition record, generated locally in one click. Import it into commercial software, archive it with your files, or post-process it in a spreadsheet. No lock-in is deliberate: data you can't take with you isn't really yours.
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