Gasoline engines and diesel engines:
Gasoline engine is gasoline as fuel engines. The advantage is high speed, simple structure, light weight, low cost,
audi k04 turbocharger stable operation, easy maintenance. The disadvantage is that the thermal efficiency is lower than the diesel engine, higher fuel consumption than diesel ignition system complexity, reliability and ease of maintenance is not as diesel engines.
Diesel engine combustion diesel engine to get the energy release. The advantage is power, good economic performance, suitable for use in the truck. The disadvantage is the higher cost, vibration noise, the winter cold car start-up difficulties.
Gasoline is a C4 ~ C10 hydrocarbon composition of all ethnic groups, the appearance of clear liquid. Research Octane divided by 90, 93, 95, three grades. No. 97 is currently seen on the market, product standards, product implementation are 98 gasoline corporate standards.
Numerals octane number, the higher the octane number, the better the antiknock properties, burning completely,
audi 1.8 turbocharger less coke, has good stability in storage and use less prone to oxidative deterioration of engine components and storage non-corrosive oil container.
Gasoline selection principles:
In general, the compression ratio of gasoline should be used 7-8 90 gasoline; more than 8 gasoline engine compression should be used in 93 or 97 gasoline. The more complex the more expensive price car engine technology, you should use a higher grade of gasoline or 97.
It should be noted that, in some special cases, such as in high altitude travel or need a large load, high torque cargo trailer vehicle when the engine is easy to knock, you should use a higher octane gasoline.
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