Below is my initial "draft list" of my DIY IQ service items for this summer with some "approx" costs. What have I missed ? and all comments welcomed: 1) Oil – 0W-20 Mobil No 1 - Fully synthetic oil - 5 ltr 2) ZX1 oil treatment - £22 – 350 ml (buy from Halfords) 3) Oil Filter - £ 25 (Buy from Toyota) 4) Oil Drain plug “O” ring & gasket £10 (Buy from Toyota) 5) Oil Filter Wrench 64mm ? - £ 25 (Buy from Toyota) ? 6) Air Filter - £ 15 (Buy from Toyota) 7) Pollen Filter - £ 50 ? (Buy from Toyota