That's because he couldn't ignite the lean gas mixture unless he squirted some diesel in. This was done on LP powered locomotive diesel engines in the 80s.
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Originally Posted by California98Civic
I have not tried it.
But damage is not just possible but almost inevitable, on a time horizon too near and at a price too dear for anyone on a normal budget and in need of their car on a daily basis.
I watched the "Engineering Explained" vid you linked to as well. But I think he implicitly answers the question of whether this is a good mod for a standard road car in his explanation. The engine he describes was was specially designed with dual ports for differently timed injections of the two fuels. It also had a super high 16:1 compression ratio and outlandishly lean AFRs programmed into the ECU, such as 45:1 at times.
So, I would never try it on my car. I would not expect more than a marginal benefit in engine efficiency from just mixing diesel with gasoline in a conventional gasoline engine. I would expect engine damage, the likelihood of which would depend on how radical you are in the mixture.
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