Originally Posted by pablo94sc
Please tell me you changed the factory oil at 1000 miles or so. Break-in oil needs to be changed out early to remove all the metal filings and other debris that break-in produces, and to get a fresh filter on there to catch any left overs. After that first change, you should then follow the oil change intervals that either the computer or owner's manual states. I believe it's 12m/10k miles for the Focus with full-synthetic.
That seems a bit extreme to change the initial oil at 1000 miles. I wouldn't push the initial oil change to the full 10,000 mile interval either, but 1000 miles is less than 4 tanks of gasoline run through the car.
I know some people were freaked out enough to change the oil within the first 1000 miles (some times almost immediately and then again at 1k, then up to the 5k interval that coincides with tire rotations.) But it does seem to be wasteful and unless you're certain that the metal was actually circulating is it really doing any damage when suspended at the bottom of the pan or in the filter?
What would happen from following a normal 5000 mile interval for the first change? Would the engine suddenly disintegrate at 200,000 miles just because you didn't change the original oil at 1000 miles vs 2-5k miles?
Originally Posted by cbdallas
My sister ran her brand new Lexus up to the 10,000 mi minder setting. I cringed.
Yeah that's a bit extreme on the other end, of course if you never change the oil you'd need to prepare to replace the engine your self (i.e. you're paying for it 100% as it was owner negligence that killed it). E.X. cases of people running the factory fill for 30-40k and seizing the motor.