Clurexa on Instagram: "The post shares a 17-second video tutorial demonstrating a DIY hack: rubbing oil onto a cracked motorcycle speedometer cover to fill micro-cracks and restore a smooth appearance temporarily. It has amassed 183,000 views and 321 likes within hours, drawing surprised and positive reactions from Indonesian users eager to try the simple, low-cost fix. The method works by matching oil's refractive index to the plastic, minimising light refraction at cracks, as noted in similar

Metal Alloys, Substitutional Alloys and Interstitial Alloys, Chemistry, Basic Introduction