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本帖最后由 anthcho 于 2020-6-15 14:52 编辑
这是水平对向引擎标配。 楼主放心用吧 你如果有看说明书 这东西半年或6000k加一次
官方解释
WE CONTACTED Subaru with your question and asked for their response, which was: ``We recommend the use of fuel additive SA718 every 6000km to prevent flaking of carbon in the combustion chamber that can be caused by additives in some brands of petrol. Typically what happens is after a short run, usually just moving the car on a Sunday afternoon to wash it, the additive in the fuel soaks on the carbon deposit in the combustion chamber and causes it to flake off. Because of the characteristic of a boxer engine with its cylinders lying on their side, the flaking carbon falls onto the seat of the open exhaust valve. When the engine is cranked to start the carbon particle prevents the closing of the exhaust valve. This means no engine compression and therefore the engine doesn't start. The spark plug is soaked in fuel and this also prevents starting even if the carbon particle becomes dislodged during the cranking. If the engine starts it often runs roughly for a while as the excess fuel is burnt off. The additive that we recommend, SA718, acts to counter the additive in the fuel and stops the carbon from flaking.'' |
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3岁孩子能写S和2－－孟氏成功个案探讨 (2009-5-29) snowbird 
发表于 2020-6-15 12:08
