In answer to your question, only covered 1000 mls to date, or 1610 km. So very moderate use to date with no problems. My head goes into meltdown as soon as the subject of MPG comes up, due to the somewhat confusing habit of trying to combine imperial measures with metric. Over here in the UK we use miles per gallon, but have to buy our fuel by the litre. How silly is that? If it wasn't for the handy readouts on the dashboard, I wouldn't have the first idea what my consumption is. In USA MPG would be differnt again as their gallon is different to ours! You might as well be talking Chinese to me as soon as I start hearing about litres, or in your case 43 millilitres per kilometre? Is there such a word as kilometreage? Is it kilometre or kilometer, as used in American English? Do we talk miles per litre, or km per gallon? Same thing with our tyres. Wheel size in inches, width & aspect in millimetres (or is it millimeters). Oh dear! It's Sunday morning here and my brain is already frazzled. My attitude? Drive it, put your favourite music on. Enjoy and don't worry about it! Happy Christmas to all.