Simple Rainwater Harvesting Formula-For every 1â of rain and 1,000 square feet of impermeable surface (roof, driveway, etc), about 620 gallons are generated. Meaning, you can capture about .62 gallons per sq ft. To figure out the square footage of a surface, multiply the width x length.
That synthetic oil gets changed at 7,000 miles. But regular conventional oil must be changed every 3,000 miles. My local mechanic that I go to is the the most trustworthy mechanic around. I asked him what if I go 5,000 miles between oil changes.He said, you will ruin your engine eventually.ut regular conventional oil must be changed every 3,000 miles. My local mechanic that I go to is the the most trustworthy mechanic around. I asked him what if I go 5,000 miles between oil changes. He said, you will ruin your engine eventually.
If you're nervous about going 10,000 miles or more between oil changes, then do it every six months, when you probably should also have your tires rotated (also explained in your owner's manual).GM says to change your oil at least once a year even if the service indicator warning light doesn't come on.MW says owners can go up to 15,000 miles between oil changes (with synthetic oil). The intervals vary by manufacturer and engines, so consult your owner's manual or maintenance schedule to see how often to change the oil in your vehicle and what type of oil to use. You may be surprised.