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Old 19th Jan 2017, 13:23
  #25 (permalink)  
Mariner9
 
Join Date: Feb 2001
Location: Cardiff, UK
Age: 62
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Mogas or Autofuel?
This has appeared on this thread from a couple of posters suggesting that the two are somehow different.

This is not the case. "Autofuel" (not an approved technical term but I presume meant to represent gasoline intended for petrol engined cars) is a Mogas (an approved technical abbreviation for motor gasoline). All Mogas (or autofuel if you really must) including unleaded and super unleaded gasoline sold on a forecourt in the UK must comply with the BS EN228 specification. That specification allows (but does not mandate) the presence of ethanol up to certain limits.

Certain airfields dispense ethanol-free Mogas, but that will also comply with BS EN228. Some Mogas sold from forecourts may also be ethanol free, but most isn't nowadays.

Aviation authorities appear to be losing the fear of ethanol at about the same rate as they are losing the fear of using GPS as primary nav.
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