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.
Re: Low mileage oil change. On the newest car (2010) with about 70K miles on it, I use synthetic oil and change it at about 8K miles, which takes about 7 months as it's our long distance vehicle. The 2004, which my wife drives, is local use only and has right at 20K miles. It gets regular oil and is changed once a year at inspection time.