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<blockquote data-quote="fabianyee" data-source="post: 554051" data-attributes="member: 6">maybe OBC is a bit haywire.. I do the old fashion way (since my 20 year old car has no gimmicky OBC which I don&#039;t trust anyway...)Pump full tank. Reset tripmeter. drive as usual, then after 1/2 or 3/4&nbsp; tank, pump full again... record BOTH trip distance and total fuel ($ and&nbsp; L) pumped in.. then do the maths... I have spreadsheet for that for the last 8 years... With the info for&nbsp; each full tank, I set formula to self-calculate L/100km, sen/km, MPG,&nbsp; km&#039;s since last service, Sparkplug age (in km) since last change, Front&nbsp; brake pads, rear brake pads, front tyres, rear tyres, gear oil, rear&nbsp; diff oil.. All the information I needed to know in 1 glance..&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Date&nbsp; &nbsp; Price (RM)&nbsp; &nbsp;&nbsp; Litre&nbsp; &nbsp;&nbsp; Distance (KM)&nbsp; &nbsp;&nbsp; Litre/ 100km&nbsp; &nbsp; Sen/km&nbsp;&nbsp; MPG&nbsp;&nbsp; Remarks&nbsp;&nbsp; Petrol&nbsp;&nbsp; Mileage&nbsp;&nbsp; KM since last service&nbsp;&nbsp; Spark plugs&nbsp;&nbsp; Front brake pads&nbsp; &nbsp; Rear brake pads&nbsp; &nbsp; Front Tyre&nbsp;&nbsp; Rear Tyre&nbsp; &nbsp; Gear Oil&nbsp; &nbsp; Diff Oil&nbsp; &nbsp; &nbsp; &nbsp; 12/09/2011&nbsp; &nbsp; &nbsp;&nbsp; 71.69&nbsp; &nbsp; &nbsp;&nbsp; 37.73&nbsp; &nbsp; &nbsp; &nbsp; 358.0&nbsp; &nbsp; &nbsp; 10.54&nbsp; &nbsp; &nbsp;&nbsp; 20.0&nbsp; &nbsp; &nbsp; 26.80&nbsp; &nbsp; &nbsp;&nbsp; Petr95&nbsp;&nbsp; 379517&nbsp;&nbsp; 11092&nbsp;&nbsp; 17841&nbsp;&nbsp; 25094&nbsp;&nbsp; 3667&nbsp;&nbsp; 22258&nbsp;&nbsp; 42913&nbsp;&nbsp; 18495&nbsp;&nbsp; 3040</blockquote>

[QUOTE="fabianyee, post: 554051, member: 6"] maybe OBC is a bit haywire.. I do the old fashion way (since my 20 year old car has no gimmicky OBC which I don't trust anyway...) Pump full tank. Reset tripmeter. drive as usual, then after 1/2 or 3/4 tank, pump full again... record BOTH trip distance and total fuel ($ and L) pumped in.. then do the maths... I have spreadsheet for that for the last 8 years... With the info for each full tank, I set formula to self-calculate L/100km, sen/km, MPG, km's since last service, Sparkplug age (in km) since last change, Front brake pads, rear brake pads, front tyres, rear tyres, gear oil, rear diff oil.. All the information I needed to know in 1 glance.. Date Price (RM) Litre Distance (KM) Litre/ 100km Sen/km MPG Remarks Petrol Mileage KM since last service Spark plugs Front brake pads Rear brake pads Front Tyre Rear Tyre Gear Oil Diff Oil 12/09/2011 71.69 37.73 358.0 10.54 20.0 26.80 Petr95 379517 11092 17841 25094 3667 22258 42913 18495 3040 [/QUOTE]

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