it was a second hand car, didn't know if the previous owner had a tuneup already, been driving it for a while na rin, nakaka 15k na rin ako. so i changed the plugs, mejo..madumi yung sparkplugs..and meh agwat na sya, don't know if dapat ba super magkadikit ung points, or how many millimeters away.... so para sure, just changed it na din.