Thanks for the replies,
I understand about the engine needing to warm up and the fuel economy on short journeys will be lower, but i went from S Wales to N Wales and back in 2 days, about 130 miles each way and the car used up a full tank (20 miles of range left), the journey was on A roads and i was averaging about 50MPH. I just think the fuel economy is low, i will keep an eye on it and if it remains the same i will take it to Lexus.
I am refilling the CT when it either as 1 or 2 bars left on fuel gauge, i am putting about £35 of fuel in (approx 30 litres), i have been monitoring the fuel and the last few refills i have been getting around 160 miles to half a tank then the bottom half a tank goes down quickly (usually after about 40-50 miles of driving my range is saying 20-30 miles left), is the procedure to reset fuel gauge something you can do yourself or will it need to go into Lexus?