Fuel Economy - What do you get out of a tank? (3rd gens only)

[wookiee]

i wish petrol was $1.27/L....!

ok, lets compare... and be realistic
reg unleaded - around $1.40/L
98 RON - $1.49/L
Weekly petrol usage - 60L

Fill up each week:
reg - $84
98 RON - $89.40

thats $5.40 p/w extra, or $280.80 p/year

considering 3rd gens dont actually have a knock sensor, hence seeing no improvement with higher RON petrol, besides it cleaning the engine, tell me how spending $280.80 extra per year is meant to be so worthwhile...?

and this all isnt referring to the recent fuel spike, where petrol could be up to $1.49/L for unleaded, and $1.58 for 98 RON

some people are living on a budget... dont knock them for doing so, its why 4c fuel vouchers are so prevalent

when you take the percentages into account, if the 98 stays 9-10c/L more expensive than 91, then it makes more sense to use it when the price is high!!

and if you get better than ~8% increase in mileage (i.e. more than about 50kms out of a tank) then you are better off using 98.

.wook

[Spackbace]

when you take the percentages into account, if the 98 stays 9-10c/L more expensive than 91, then it makes more sense to use it when the price is high!!

yes percentage wise it does, but when its already a ~$80 blow to the wallet, why would you wanna pay anything more

and if you get better than ~8% increase in mileage (i.e. more than about 50kms out of a tank) then you are better off using 98.

and this is still in 2 stages at the moment, not everyone has found economy differences anywhere near that.


oh, and we're not including fuel vouchers here (thus a further saving of approx $2.40 p/w), as well as hunting for the cheapest price (sometimes caltex is far cheaper than bp), and this all blows the difference out above $10

*uses fuelwatch*

cheapest reg within decent distance - 136.6 (caltex woolies, so with fuel voucher = 132.6
cheapest 98 RON within decent distance - 146.6 (caltex woolies, so 142.6)
or if u want, cheapest BP 98 RON is 150.5

so minimum 10c/L difference, up to a minimum of 17.9c/L for BP branded fuel

so please, dont push 'economy' figures etc at me when theres huge price differences right now

[matty.c]

i understand that.. but really you only need to be getting an extra 30km to a tank to be breaking even when using the 98 octane.. when u look at the $$$ to mileage..

i understand that for some ppl every $ counts.. like young families and mortages etc etc belive me i know about that! for me it's saving money cos of the less need to go back to the bowser.. and i know it's better for my engine so i do it anyway..

were a little off topic..

[wookiee]

yes percentage wise it does, but when its already a ~$80 blow to the wallet, why would you wanna pay anything more

so you can drive a little further between fill ups?

and this is still in 2 stages at the moment, not everyone has found economy differences anywhere near that.

I'm going from matty.c's numbers. I don't have any other number to go by.

oh, and we're not including fuel vouchers here (thus a further saving of approx $2.40 p/w), as well as hunting for the cheapest price (sometimes caltex is far cheaper than bp), and this all blows the difference out above $10

*uses fuelwatch*

cheapest reg within decent distance - 136.6 (caltex woolies, so with fuel voucher = 132.6
cheapest 98 RON within decent distance - 146.6 (caltex woolies, so 142.6)
or if u want, cheapest BP 98 RON is 150.5

so minimum 10c/L difference, up to a minimum of 17.9c/L for BP branded fuel

so please, dont push 'economy' figures etc at me when theres huge price differences right now

you're not making much sense. pay 8% more to go 18% further (not my numbers). that makes perfect sense to me.

there's not HUGE price differences... your numbers say 10c\L (132.6 vs 142.6) from the same place, and that's only 7.5% more. you can't compare BP 98 to *discounted* Caltex 91 and say that's the price difference when there's discounted 98 at Caltex for 7.9c\L less

.wook