Ether can be used for starting fluid, but it is known for stretched head bolts and other issues in big diesels (most of which don't use glow plugs). WD-40 is preferred by most. Other reason is its propensity for washing the lubricant from cylinder walls when used prodigously (has killed many Wankel (Mazda rotary to not use the German name) engines also).

In a glow-plug or heated intake, it shouldn't be used unless the pre-heat is disabled. In the Oldsmobuick, it is for this reason it is cautioned against, same in Mercedes.

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Gone to the dark side

- Jeff