Folks, I could use your advice on this.

When I checked the tranmission warm (after approx. an 8 mile drive, car in Park, engine idling), fluid level was very low, near the tip of the dipstick. I became concerned and drove to NAPA (in my truck, not the 190E) and picked up a couple of quarts of NAPA Dexron III ATF (Dexron III is what the owner's manual recommends for the car). When I checked the ATF level again, after coming back from NAPA and running a couple of errands (approx. 2.5 hours later) the fluid level reads almost to the second mark. I'm not sure how to interpret these seemingly conflicting readings. Please let me know if I'm not doing something properly and what I should do to determine my true fluid level. Thanks for your suggestions/help!

regards,
Hans (Atlanta, GA - (Peachtree Corners))