1.0l mpi MPG

[dub6n2]

as the topic states what type of real life mpg should I expect from a 1.0l mpi engine, cos currently I am doing around 8.5l/100km (with 18 litres in the tank I covered around 220km) and I think that it it too much for a stupidly slow engine like this when reading that the new 2.0 tsi does it in 6.5l/100km!! I am not the most economic driver though but still it looks like too much!! and is it real that a 1.4mpi would return better economy because it would have to work less than a struggling 1.0mpi?

[alexperkins]

I used to get over 400 miles a tank out of my old 1.0MPI and that was rather respectable I thought!

[dub6n2]

so I found out that a tank is approximately 40l (actually 45l but I doubt it would be full to the brim) and 400miles are 640km. that is equal to 6.25l/100km ! much more respectable then mine ... is there something I can do?! I have recently changed the fuel filter, spark plugs, the air filter is clean and saw no gain in economy. could the lower octane fuel here in malta blame for that?

[alexperkins]

Lower octane fuel could cause a poor economy but its not common. How many miles do you get out of a tank?

[8080]

i get 38 mpg average in my 1.0 6n2. I run 99 octane, almost all motorway, and never go below 3500 revs!!!

[dub6n2]

Lower octane fuel could cause a poor economy but its not common. How many miles do you get out of a tank?

ehhh never filled a full tank . here in malta the octane is lower than the manufacturer recommendation of 95RON!! its around 87RON!! fu*ken fuel company we got here on this rock!!

[dub6n2]

i get 38 mpg average in my 1.0 6n2. I run 99 octane, almost all motorway, and never go below 3500 revs!!!

with some calculations I found that mine goes around 34.6mpg so that would most probably be the octane problem because it has to struggle more for power to compensate for the lower octane . is there anything mechanical that can be done to improve it?

[dub6n2]

although I have just read that if the engine is not knocking(because of low octane) increasing the octane level will be of no use. so I think that 99 octane is a little to much for a low compression engine like ours

[benmkiv]

i run standard petrol do no motorway driving and rev to around 3000rpm every time

im gettin garound 46mpg when i put in 30 pounds

[dub6n2]

wow that is nothing near to what I get!! I have just calculated again and mine does 36.6 mpg! how are you actually calculating the mpg?

[benmkiv]

basically i put in £30 of petrol this was 25.77litres

divide this by 4.5 gives me 5.72 gallons

then i did 250 miles on this petrol until the light came on again 250/5.72 gives me 43.7