11-27-2004, 10:12 AM. I drive my BMW hard almost every day.. 214 miles a day and once a week I like to hold it to the floor and see what it could do.. cuts out at 129 miles per hour.. I have 369,000 miles on an 89 325i..I bought it with 177,000 and the only thing I do is change the oil every 5,000 miles....never changed the plugs, or wires and I run on 87 gas, the cheep stuff..1-27-2004, 10:12 AM. I drive my BMW hard almost every day.. 214 miles a day and once a week I like to hold it to the floor and see what it could do.. cuts out at 129 miles per hour.. I have 369,000 miles on an 89 325i..