求翻译：喷油嘴清洗的频率，要根据车况和平时使用的燃油的质量来确定，长期不清洗或者频繁地清洗喷嘴都会造成不好的影响。一般来说，现在大多建议车主在2到3万公里左右进行清洗。车况好、燃油质量好可以延长到4到6万公里左右。是什么意思？

The frequency of nozzle cleaning, according to the quality of the condition and usually use fuel to determine the long-term cleaning or frequent cleaning of the nozzle will cause a bad influence. In general, most recommend that owners to cleaning 2-30000 km or so. The condition is good, fuel good qu

Fuel injector cleaning, the frequency depending on the situation you want to use when the quality of fuel oil to determine long-term, do not clean or frequent cleaning of the nozzle will cause undesirable effects. In general, it is now recommended that most car owners in the 30,000 km 2. The situati