by Robert Sanborn on Mon, Jun 15, 2009, who was a member of the STLE Society of Tribologists and Lubrication Engineers for 15 years.
As fuel prices begin to skyrocket again, future plans for the purchase of an automobile should not rule out considering a diesel car. In the past, the purchase of a diesel car has been shunned in the U.S. This is due to the noise and filling up at the messy diesel pumps. But all that is about to change.
70% of All New Cars are Diesels
In Europe almost 70% of all new car registrations are diesels! Because of the high price of fuel and the new high-pressure quiet diesels Europeans are buying in record numbers.
You achieve high-pressure diesel injection when you inject diesel fuel under a very high pressure in the cylinders of an internal combustion engine.
High-pressure injection yields smaller drops of fuel, which have relatively more surface exposed to the air surrounding them. Thus, the oxidation (the burning process) of the diesel is performed faster and better. This means that you get more energy out of your fuel, and exhaust particles are smaller. The overall result are engines that generally run better, and yield more torque and power. As a bonus, they are far more efficient, lowering fuel use and thus improving mileage. That is, because the fuel is burnt more thoroughly, you get more energy out of it.
New Diesel Cars are as Quiet as Gasoline Cars
Normally diesel engines like this would produce way too much noise to be usable in passenger cars. But the injection system has a clever way to deal with it. In gasoline engines, the ignition of the fuel is done by an electrically generated spark. Not so in diesel engines, where the burning process starts automatically due to high temperature and pressure in the cylinder. The motor management decides exactly when the fuel enters the cylinder. And by gradually injecting fuel (not everything at once), the burning process can be extended over a slightly longer period. This process reduces noise that the combustion produces, and lowers the exerted force on the components of the engine, thereby improving durability.
Much Better Mileage than Gasoline Cars
With smaller fuel nozzles and diesel cars getting over 50 miles per gallon one can see why this is so popular. It’s only a matter of time before the U.S. market begins to explode in this area.
SFR manufactures D-Sol Diesel Fuel Conditioners to keep injectors clean, fuel from gelling in the winter-time and improving mileage. Lubricity additives are critical says Caterpillar and Cummins due to the new low sulfur fuel. Low sulfur diesel fuel is actually very similar to jet fuel.
If you are thinking about a car consider a diesel as they are coming to a dealer new you soon with projections of an increase in sales of 15-20% each year.