redwhiteandblue
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Get a life aswell as a coffee mate, that's pretty sad working all that out.Maybe.
According to the RAC Foundation, the average petrol price (per litre) as of June 1st, 2022, was 174p. The average price as of July 1st, 2022 is 191p.
That's an increase of 17p, or an average of about 0.6p a day.
Tank size of a Ford Focus EcoBoost 1.0 is approx 45L (around 10 gallons) and you're getting probably 50mpg, that means you're able to get 500 miles on a single tank. If you're filling £120 a month, that means you're probably filling how many litres, maybe 70? So that's 18 litres a week, or 15 gallons? That's around 750 miles a month you're doing?
If you filled 18 litres on June 1st, 18 litres on June 8, 18 litres on June 15 and 18 litres on June 22, that would have cost you something like
18 * 1.74 on June 1st = £31
18 * 1.82 on June 8th = £33
18 * 1.87 on June 15th = £34
18 * 1.90 on June 22nd = £34
Accounting for the rise over the month using prices from the RAC Foundation
So £132.
At 70 litres a month, you could fill your tank at the start of the month, and fill it again three weeks later?
Had you done that in June you'd have filled on June 1st and say June 22nd...
45 * 1.74 = £78
25 * 1.90 = £48
So £126
You may well have saved £6 that way, but that's not accounting for a range of other factors, e.g. is your car less economical with more fuel in it?
I may well have fucked up the numbers there. I need a coffee.