Check this out. A guy that does independant lab testing is testing this and was talking about it on an Old tractor forum.

http://www.equipmentworld.com/apps/news/articleeqw.asp?id=45923

Looks pretty good.


Sorry if this is a repost but I hadnt seen it here yet.

These folks are the only distributor that will sell the ACES products ( and their own lubricants and coolants ) to the non - fleet individual customer:

http://www.bndautomotive.com (http://www.bndautomotive.com/)

ACES is the only thing I've seen that cost effectivley lowers PM, NOx, and other emissions, reduces fuel use, extends equipment life, and eliminates the need for water / methanol injection.. oh, and you can use it with biodiesel & WVO if that's what you are into.

It's not cheap, but it is a value when you look at the limited effectivness of distillate additives in trying to accomplish the above.