Expert Knowledge

It seems like the fuel tank is filled up more than the rated capacity!!!, “It’s never been like that!!!”Driver may have all experienced something like these. Especially when filling up the car, drivers sometimes doubt if the right amount of fuel is filled for these reasons.

The color of exhaust gas slightly differs from vehicles, but is usually divided into colorless, white, black, and blue-gray. Therefore the color of gas emitted from a car’s muffler shows the condition of engines and the cause of failures. Then how does the cause of failure differ according to the color of exhaust gas?

"Bright Stock" refers to lube base oils of high viscosity produced by atmospheric distillation and vacuum distillation, then extracting and dewaxing solvents from residual oils, and finally hydro finishing.

LPG engines employ, with minor differences, a similar lubrication system to those of gasoline or diesel engines Using generic gasoline engine oil is permissible under normal operating conditions.

There are two types of marine diesel engines: crosshead and trunk piston. In crosshead marine diesel engines, the cylinder and crankcase are separated by a partition, and the pressure pushing the piston down is imparted to the crankshaft through the piston rod and the connecting rod.

Automotive gear oil can be broadly divided into Manual & Automatic Transmission Oil and Differential Gear Oil. LSD gear oil is a specialized sub-type of the differential gear oil.

The most extensively referenced industrial oil classification is the one established by ANSI/AGMA (American National Standard Institute/American Gear Manufacturers Association) that classifies industrial gear oils where gear oils are classified into four types as shown in the following table :

It’s unusual for industrial gear oil to have a milky appearance because it has good water separation properties. Free water should be settling down to the bottom of the reservoir tank, which can easily be drained out.

Bitumen penetration test is done to evaluate the consistency and hardness of bitumen which helps to determine the penetration value.

Based on a variety of criteria, bitumen is divided into distinct grades. The type of application, the climate, the amount of traffic, and other factors that are important for achieving the intended outcomes are all taken into consideration when choosing the optimum grade of bitumen.