What is BIODIESEL ?

WHAT IS BIODIESEL ?
Biodiesel is the name of a clean burning alternative fuel, produced from domestic, renewable resources. Biodiesel contains no petroleum, but it can be blended at any level with petroleum diesel to create a biodiesel blend. It can be used in compression-ignition (diesel) engines with little or no modifications. Biodiesel is simple to use, biodegradable, nontoxic, and essentially free of sulfur and aromatics.Biodiesel is produced from any fat or oil such as soybean oil, through a refinery process called transesterification. This process is a reaction of the oil with an alcohol to remove the glycerin, which is a by-product of biodiesel production. Fuel-grade biodiesel must be produced to strict industry specifications (ASTM D6751) in order to insure proper performance. Raw vegetable oil cannot meet biodiesel fuel specifications, it is not registered with the EPA, and it is not a legal motor fuel. Biodiesel is defined as mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats which conform to ASTM D6751 specifications for use in diesel engines. Biodiesel refers to the pure fuel before blending with diesel fuel. Biodiesel blends are denoted as, "BXX" with "XX" representing the percentage of biodiesel contained in the blend (ie: B20 is 20% biodiesel, 80% petroleum diesel).Biodiesel can be operated in any diesel engine with little or no modification to the engine or the fuel system. Biodiesel has a solvent effect that may release deposits accumulated on tank walls and pipes from previous diesel fuel storage. The release of deposits may clog filters initially and precautions should be taken. Ensure that only fuel meeting the biodiesel specification is used.

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What is Electronic Stability Control (ESC)

Electronic stability control (ESC) is a safety feature that detects and prevents (or recovers from) skids. ESC can help keep the driver from losing control of the car in a panic swerve or when driving on slippery roads.
A government study showed that ESC reduced single-vehicle crashes by 34% for cars and 59% for SUVs. The Insurance Institute for Highway Safety estimates that ESC reduces the risk of fatal single-vehicle wrecks by 56% and fatal multiple-vehicle crashes by 32%. Because of its proven effectiveness, the US Government has mandated that all new cars must be equipped with ESC by the 2012 model year.
How (ESC) Works : ESC uses sensors in the car (wheel speed sensors, steering wheel position sensors, yaw sensors, etc.) to determine which direction the driver wants the car to go, and compares that to which way the car is actually going. If the system senses that a skid is imminent or has already started -- in other words, that the car is not going in the direction the driver is telling it to go -- it can apply the brakes on individual wheels to bring the car back under control. Because the system can brake individual wheels, whereas the driver can only brake all four wheels at once, ESC can recover from skids that a human driver can't.

Different manufacturers use different names for their electronic stability control systems.
Electronic Stability Program (ESP)
Vehicle Stability Assist (VSA)
Vehicle Stability Control (VSC)
Vehicle Dynamic Control (VDC)
Dynamic Stability Control (DSC)
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