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The power vs sound output scale is a very interesting topic which most people don't get or don't know about. If I remember correctly, it goes something like this. A speaker efficiency makes a huge impact on sound power output. The ratings of say 90dB at 1watt measured one meter should give you...

You could say that... Firstly, is fuel consumption, both cars have improved, engine smoothness, lower idle noise, general driving characteristics, when accelerating or climbing up grades where previously you would feel resistance. Oh I have also recently changed the valve cover gasket on the...

How long has your car been consuming oil? Are there any minor leaks that you can't pinpoint? It's strange to be consuming oil, unless your car has always done this. I always check oil levels when cold, but the owner's manual will better advise. I have a KIA Cerato 2.0L engine with around 180k...