SplitFire
spark plug manufacturer

SplitFire was a company that manufactured a spark plug featuring a split ground electrode. SplitFire claimed that its "V" electrode design improved combustion by allowing the ignited flame to pass through the gap in the electrode, instead of around it.
History
SplitFire spark plugs were popular and heavily advertised in the early 1990s. The manufacturer also sponsored the SplitFire Spark Plug 500 NASCAR stock car race, the SplitFire 200, various other powersports, and the Pro Bowlers Association SplitFire Spark Plug Open.
In 1997, the United States Federal Trade Commission charged SplitFire with deceptive advertising. The manufacturer settled the charges with the FTC; as part of the settlement, SplitFire was prohibited from making what the FTC considered deceptive claims about fuel economy or emissions.
After the settlement, the popularity of SplitFire's spark plug range declined. In 2002, it was still considered a leading sparkplug manufacturer, but by 2015, the company's products were not broadly distributed, and its official website had been removed.
“SplitFire” enters the record as spark plug manufacturer. Crown Archives preserves that source wording while asking what SplitFire, spark and plug can confirm, complicate or overturn.
Why this record matters
“SplitFire” is worth following because a concise public description often conceals a longer documentary argument. Here, SplitFire, spark and plug provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Oct 21, 2024. The linked authority identifier is Q7578611. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1997, 2002 and 2015.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “SplitFire”, its source revision and the description used here.
- Expand the search: follow SplitFire primary sources, SplitFire archive and SplitFire research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “SplitFire”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “SplitFire” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.