Graham,

Alright, Canadian Tire's, MotoMaster cetane booster, as made by Shrader is mostly Stoddard Solvent. And WD 40 is mostly Stoddard Solvent, And, a quick trip to Canadian Tire got me a jug of Pennzoil Gas Mileage Treatment. Ingredient? Stoddard Solvent.

What is it, this Stoddard Solvent?

Here,

http://hazmap.nlm.nih.gov/cgi-bin/ha...lAgents&id=179

We are told, it's a mix of Aliphatic and alicylic hydrocarbons, that sometimes, (but not always) contains benzene.

And here,

http://www.ilo.org/public/english/pr...3/icsc0361.pdf

We are told that it's a,

"Colorless liquid with a kerosene-like odor, Stoddard solvent is a mixture of straight and branched chain paraffins (48%), naphthenes (38%) and aromatic hydrocarbons (14%).The odor threshold is 1 to 30 ppm. [ACGIH]

So, the ubiquitous WD 40 and a common gas treatment might act as an ignition improver in our little diesel engines. Who would have thought? Well, I always wondered what was in all of those slick looking products on the shelf at Canadian Tire. Most of them just say petroleum distillates. Maybe most of them are made from the same basic ingredient.

But right now, the only product that I'm sure works as well as Amsoil cetane booster is MotoMaster's cetane booster. The other stuff will be tested as soon as possible. If it's still raining tomorrow, I may be getting pretty wet. [X(]