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NGK、BOSCH、DELCO is all ok for normal use. but if u want high performance like high hp cars. use NGK 白金, Bosch 白金 2+ or above. since they produce stronger spark, specially when the rpm is high.
2 E& Q9 X" j+ |% z/ C6 d# o2 Rbasiclly the more expensive plug produce higher performance and reliability. i am using Bosch 白金 2+ for my 2000 civic, since it is the highest grade i can go, Bosch stopped to produce any 4+'s. .........but in my acura, i'm use 4+, to maintain the performance i needed.
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1 x# D2 P$ M# V5 `: p/ p& gabout" 火花塞的间隙用不用自己进行调整." u have to do it for cheap plugs, but Bosch 白金 2+ and 4+ u dont need to do it, it is already been set. not sure about high grade NGK plugs. |
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