Vitiligo: Overview Vitiligo: This skin disease often forms on both sides of the body as shown here on the knees. Vitiligo (vit-uh-lie-go) causes the skin to lose color. Patches of lighter skin appear. Some people develop a few patches. Others lose much more skin color.
Removing and inspecting spark plugs tell you a lot about how well the engine is running and what may be causing problems. All spark plugs should be removed and checked every 30,000 miles - even if your BMW is low maintenance - you're told to change spark plugs at 100,000 miles. This prevents the plugs from seizing in the block, causing expensive repairs down the road. Always note which plug came from which cylinder.
A friend had â¦a Del Sol with 150,000 miles that just started to give him starting issues, low power, bad fuel economy. His spark plug wires were bad. I wouldn't recommend waiting that long. Spark plugs are usually good for 60,000 to 80,000 miles. They should be checked and gapped every 30,000 to 40,000 miles though. I only use Honda Factory spark plug wires. The ones you buy at an aftermarket parts store are always hit and miss, and sometimes won't make it to even 40,000 miles.