I wanted to drain and top up the gear oil on my '08 center and didn't know how much fluid I needed. I went ahead and ordered 5 liters and as soon as it arrived I drained my transmission oil. I measured the amount of leaked liquid, it turned out to be 5 liters. I put oil in the gearbox and checked the oil level on the dipstick and it was perfect. Thanks for the great price and fast shipping.