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MSE's 2011 Petrol/Diesel Cost Diet Challenge: Put your money where your pedal is!
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I've noticed this effect and think that it's due to the fuel warming up and expanding when it's transferred from the underground storage tank to the car tank.
I thought that, until it started leaking water, costing me £130! Now I will avoid them at all costs no matter what the MPG saving is!
Recently, I tried 10 tankfulls of Tesco petrol (usually costing a penny a litre more) and achieved 48mpg, though I can't guarantee that my use of the air conditioner has been the same.
I'm now trying BP fuel..... Then I could try Shell......
Someone must have done similar tests in the past. Can they please tell us all their conclusions?
Yup, unless you drive a performance car there's sod all difference.
i fitted a ECO TEC P26 this is a small valve you can fit your self in about 10 min & and cost about £25 it gives you a cleaner run down and brakes up the gas in the inlet manofold.
i have a AIR INTAKE KIT ( a open after market air filter ) this is sold as a performance part but if you drive it softly you will save money and you can buy one for as little as £7
one more tip is fill up when its cold ie in the morning ( top gear ) & put 2 psi more than is on the tire.
i allso have fitted MAGNETS to the fule lines not sure if it makes a big differance or not but its big in germany to save on fule.
i done a trip from portsmouth to birngham and i got a average MPG of 82MPG i was driveing at a avarage of 60MPH & i was siting behind any large lorry i could find i drive a 2LTR ford focus . my normal MPG is 48MPG as i do alot of city driveing.
thanks pete
To find out that these valves are now still being sold for modern cars, and sometimes, laughably, as a performance enhancer, shows the triumph of marketing over truth. They simply are no longer relevant or have any beneficial affect whatsoever.
Best economy measures in a modern car is to have it in properly serviced condition, good tyres at highest advised pressure, throw away the rubbish that you don't need weighing down the car, drive with a feather foot and anticipate well.
I used to have a van and a car; as I am self employed and needed a van for certain jobs; but running the van for only these certain jobs was too expensive; so I sold that side of the business and sold the van. - Profit straight away from selling the business.
With this profit I converted the car to LPG (approx £1,000). Now I run my business from the back of the car (tight fit with all the equipment) and now have found new customers to cover the ones I sold.
Now I take my wife to work in the morning; use the car all day for work and then pick my wife back up after work. Yes this means the car does more miles but as I'll now explain it is a lot cheaper.
So I worked out:
Running the van cost £2,500p/a. - So thats a huge saving not having that anymore.
Converting the car to LPG £1000 - one off payment.
12,000 miles a year on LPG @ 10.5p a mile = £1,260 (including business use now)
8,000 miles a year (previously) on petrol @ 19p a mile = £1,520 (before LPG conversion and business use)
Difference just on LPG vs petrol = £260 SAVED (even with 4,000 miles more).
No change to cost of insurance = £0
Road tax = £10 less
So £260 + £10 + £2500 = £2,770 saved in a year by converting to LPG and altering my business a little. (before claiming tax back on vehicle usage / fuel for business use etc).