Talk:Bi-fuel vehicle

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Proposed merge with Flex-fuel vehicle[edit]

  • Strong oppose. Just read the lead in the two articles. Bi-fuel and dual-fuel are not the same thing. The common use of flexible-fuel vehicle refers to two fuels store in the same tank and burned simultaneouly. The usual fuels are etanol and gasoline and they are called dual-fuel vehicles (just read the Terminology section in Flexible-fuel vehicle). Bi-fuel refers to two fuels stored in separate tanks and they are not used simultaneouly. Common fuels are natural gas (CNG) and gasoline. Being different things there is no reason for the merge. By the way, the proponent forgot to justify here the rationale for his/her proposal. --Mariordo (talk) 10:45, 25 November 2008 (UTC)

The advantage of dual fuel - burning two fuels simultaneously is no need to modify the engine. Natural gas and diesel have different octane ratings and therefore require different compression ratios. Dual fuel advocates claim the same output power without modifying the compression ratio. Another issue is lubrication. In diesel engines, the fuel lubricates the engine's valves. No lubrication when natural gas burned by itself. — Preceding unsigned comment added by (talk) 14:16, 2 January 2012 (UTC)