When I fill up, I usually have about 10 litres left in the tank, having done 270 to 280 miles. To scared to run out of petrol.
Also never take my car past 4000rpm unless its an emergency.
Not bad mileage for either of us then!
Thunderstorm
![Razz :P](./images/smilies/icon_razz.gif)
I agree entirely. I've run occasional experiments and I find:valdigre wrote:A small update...After emptying the whole 40 litres of 98 fuel I subjectively find no performance gain and a small (coincidence?) economy boost (about 15-20 kilometers).
Today I refilled with 98 again, we shall see if this was not a coincidence
I use the "75mph cruise" method.Geeman wrote:i havent noticed any difference running optimax, or regular unleaded, usually get around 270-280 to a tank
valdigre wrote:Hi there,
Your low numbers are scaring me, either you are driving your cars like racing drivers whole the time