J;
Ray is 'down under' where the air polution systems are different than here and I think he was refering to a diesel engine too.
There was a problem with fungus here as well (diesel fuel) some years back.
This appears to be an 'aftermarket' device which would be ileagal here as It's a "modification" to what the government says we need etc.
If our commercial vehicles were to prove it worked, tax money would be lost.
