cheekychimp
Well-known member
Not another thread so much on how much you get from a tank but more upon how octane ratings and maybe timing would affect fuel consumption.
I have been running Shell V-Power for a while now as it is the highest octane rated fuel I can get over here without adding "octane boosters". Car ran great with it but I'd been seeing lowere mileages recently. I had been putting my foot in it a lot as usual, plus quite a few short trips taking Nathan to school, so I really thought nothing of it.
Recently money has been a bit tight with the new house, end of year tax bill so I figured I'd cut back and use regular. To be honest I couldn't detect any noticeable difference in performance. That doesn't mean anything, I'm not a dyno after all but the first tank of regular I use and I get 404 kilometres and I figure I've still got 40 km in the tank. I've owned this car for over three years now and I have never got over 400 km out of a tank. Admittedly I did some longer highway based journeys recently going to the airport to pick up friends etc but that also meant much more weight in the car than usual (full grown guys plus luggage).
I thought higher octane fuel and more timing led to better efficiency more power and better fuel economy? Have I got this wrong? Any chance the engine is cutting timing due to lower octane fuel, I am seeing less power and I'm getting better economy from not being able to push so hard?
I have been running Shell V-Power for a while now as it is the highest octane rated fuel I can get over here without adding "octane boosters". Car ran great with it but I'd been seeing lowere mileages recently. I had been putting my foot in it a lot as usual, plus quite a few short trips taking Nathan to school, so I really thought nothing of it.
Recently money has been a bit tight with the new house, end of year tax bill so I figured I'd cut back and use regular. To be honest I couldn't detect any noticeable difference in performance. That doesn't mean anything, I'm not a dyno after all but the first tank of regular I use and I get 404 kilometres and I figure I've still got 40 km in the tank. I've owned this car for over three years now and I have never got over 400 km out of a tank. Admittedly I did some longer highway based journeys recently going to the airport to pick up friends etc but that also meant much more weight in the car than usual (full grown guys plus luggage).
I thought higher octane fuel and more timing led to better efficiency more power and better fuel economy? Have I got this wrong? Any chance the engine is cutting timing due to lower octane fuel, I am seeing less power and I'm getting better economy from not being able to push so hard?