808Guy

I saw a few post from people noticing that their cars have improved power, fuel economy and overall performance after the 1st oil change. is this true? will I notice this also after my 1st oil change?

ModifiedA4

Yes...around 7k miles for me the car loosened up dramatically.

Saturnine

Dont they use a different oil for the "break-in" period?

looey

That's what my dealer told me as well...don't get the oil change for 10,000 miles.

Mooney

Why not? First sched. maint. on MY2000A4 is 5k miles

4motion

Auto manufacturers haven't used 'break-in' oil for years! New Corvettes come with Mobil 1 synthetic right out of the box. My new Passat 4Motion (Audi 30V V6) came with SAE 5W-40 in the crankcase from the factory, and I changed it and the filter at 250 miles. These first changes are important, as this is when most of the foreign material from run-in is circulating around in the oil. I'll do it again at 500 and 1000 miles, then every 5000 per warranty specs, using Mobil 1. Just my opinion...

4motion

10,000 MILES? Your dealer must be hungry for engine warranty work. On second thought, if you go 10,000 miles before your first oil change, they'll VOID your warranty...

Wayne H.

After my break-in period I was definitely driving the car harder though :-).

It's unlikely that an oil change would suddenly change the characteristics of the car. If you move to a lighter-weight oil you may notice some changes in terms of fuel efficiency and the car may feel like it revs easier as well.

I'm not sure what weight oil is used from the factory or what your dealership switches to.

Don't expect any mircles after the oil change, but you may notice some differences.