Water injecting and EGR

[cRiPpLe_rOoStEr]

Originally Posted by racprops

I looked into the idea of Propane injection/additive and as a business at that time promoting and selling this setup, the use of propane was require to by it at a automotive fueling station at the much higher costs per gallon, and if I remember correctly it was fed in at a 20% rate giving a 20% improvement in MPG.

Propane as an additive only works for Diesel engines, otherwise it's better to just use it as a normal fuel. On a sidenote, now that so many gassers resort to direct injection, just like Diesels have been resorting for decades, maybe a propane enrichment could be worth to decrease NOx and PM, while providing some performance enhancement too.

Now as a non-business person, I could get away with using BBQ Propane and it would cost about 50% the automotive fuel...

Not so safe to use a home propane bottle as a fuel tank in a car...

I just looked at the cost of methanol and it is around $30.00 per gallon...

I think it will not be all that cost wise

Besides Everclear, what other 192-proof ethanol could you find there? I guess E85 wouldn't be so good to mix with water.