Ford, Volkswagen and Porsche, for example, recommend oil changes every 10,000 miles. So does Toyota on several engines, including the Prius' 1.8-liter four-cylinder and the Camry's 2.5-liter four-cylinder. BMW says owners can go up to 15,000 miles between oil changes (with synthetic oil).
âHighâ fitness women ran the mile in nine minutes or less; âmoderateâ fitness women ran it in 10 minutes and 30 seconds or less and âlowâ fitness women needed 12 minutes or more to complete the mile. Run for Life states that a 10-minute mile rate is good for beginners; the goal is to complete 3 miles in 30 minutes. If a 10-minute mile rate seems out of reach, start with a 12-minute rate and then work downward.
Beginners: Your 12-Week Half Marathon Training Plan. Assuming you're doing 4 to 5 miles once a week, 12 weeks gives you plenty of time to build up to a 10- or 11-mile long run. You don't necessarily need to run 13.1 miles in training to be confident that you can finish the 13.1-mile race, yet you don't want your longest run to be just 8 miles.