[dabnis]

I have read that engines with pre-combustion chambers can be severely damaged by ether. I used a very small shot of it once in my VW diesel in -15 degree Fahrenheit weather after just about flattening my battery, as the last resort, fired immediately, no damage, luckily.

Used ether every cold start on my Detroit 3-71 two stroke, direct injected diesel, worked fine, saving a lot of cranking. Just a quick shot did it.

Paul T