I believe the electronic oil level monitoring is somewhat sensitive to the amount of oil poured into the engine during an oil change. If one realizes that when using oil that is packaged in a metric bottle, eight of these bottles are poured into the engine. But none of the bottles are completely drained of all oil that was inside the bottle. That means that there really wasn't exactly 8 liters poured into the engine, but something minutely less than 8 liters. There will always be some residual oil still in the bottles due to surface adhesion between the oil & the bottle.



Now take the same oil change using English measurements.. A quart bottle of oil is just slightly less than a liter bottle of oil. So 8 quarts of oil is only 7.5-7.6 liters of oil. Same facts hold in that not all of the oil in the quart bottles is drained into the engine. So there is something less than the 7.5-7.6 liters of oil in the engine. Now when you add the last 1.2 quart, you come close to pouring in EXACTLY a 1/2 quart due to a partial drain. Oil level switch in the pan may be sensitive enough that this last bit sends it into HI LEVEL warning. Now not all XFire Owners in the CONUS have experienced this issue, but many of us have. So the consensus is pour in 8 quarts, and even if the dipstick on your car reads a little low, it really isn't a big deal.