Weight loss happens fast after gastric sleeve surgery: 1  Month 3: About 1/3 of excess weight is gone. 2  Month 6: About half of excess weight is gone.  Month 12: Up to 70% of excess weight is gone.
Allow your engine to cool for 3 to 4 hours before changing your spark plugs. They can be extremely hot if you do not allow enough cooling time. On most vehicles, you should replace your spark plug wires at the same time as your spark plugs.
Wait, we can still change the spark plugs! Most cars still have a spark plug or 8 in there someplace. The condition of your engine, even your driving habits can affect the life of the plugs. But hey, they're cheap, so replacing them every so often can't be a waste of money.