I just dumped in 6 quarts on my Dad's 07 Taco 2.7 on its first OC, leaving out the .1 quart. The level was still a little over, but nothing big. That's the way it came from the factory, so I assume it's fine. Its dipstick is hard to read anyhow. BTW, the oil filter is definitely a pain to remove. It's in a bad spot and making a mess is unavoidable. The filter in the 4.0 is sooooo much easier. I used Castrol 5W-20 in it, because that is what is specified. I also used the OEM filter. The car runs very well at 3k, no problems so far. I changed out the factory fill at 2.5k for him. It's a nice truck with a car-like ride. The engine is a little short on power, especially with the AT. But he's pleased with it and that's what counts.