Octane.........unbooster?

Right so you pay for a full tank of 95 then you add something to it to dilute it.....so you pay for the full tank of fuel and then something else on top? How can that ever have been considered to save money over just buying the full tank of fuel? Barmy
 
thecremeegg said:
Right so you pay for a full tank of 95 then you add something to it to dilute it.....so you pay for the full tank of fuel and then something else on top? How can that ever have been considered to save money over just buying the full tank of fuel? Barmy
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O.O

Because you don't pay for a full tank of fuel, you pay for the reducer and enough fuel to fill the remainder of the tank, if the reducer costs less than the petrol you save money...
 
You need to mix 4 parts V-Power with 1 Part veg oil.

The veg oil will dillute the V-power to get it down to the 91 you are after. Using 95 will reduce it too much, you need to use V-power for the right result.

The best oil to use is Tesco Value as it is less refined, and in some test results when mixed with the V-power can increase power by 5% and mpg by an astonishing 11%.
 
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Simon said:
Fuel isnt just Octane.

You need energy for an engine to be able to drive the wheels
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I don't know the details but isn't a higher octane just good for advancing the timing without pre-detonation?

As american engines are usually big and not highly tuned they don't need to worry about pre-detonation so use lower octane fuel?

Hence what he wants to do is (if it's possible on his ecu) tune the engine timing to get the best economy on 95 ron fuel?
 
ubersonic said:
I should probably point out at this point that my research lead me to a British classic cars owners club forum where they explain how to do this and give you examples of what can be mixed with the 95RON to do it and what quantities are needed for certain desired RON's.

But it doesn't matter like I said I was just asking for a friend hoping to get some friendly advise.
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Link us please.
 
GinG said:
You need to mix 4 parts V-Power with 1 Part veg oil.

The veg oil will dillute the V-power to get it down to the 91 you are after. Using 95 will reduce it too much, you need to use V-power for the right result.

The best oil to use is Tesco Value as it is less refined, and in some test results when mixed with the V-power can increase power by 5% and mpg by an astonishing 11%.
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What about olive oil?
 
sigma said:
What about olive oil?
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Tests have shown that it can be used, however due to the oil being more refined it doesn't detonate as well and in turn can knacker the engine. Olive oil is far more expensive to buy also.

Rumour has it that adding in something with a bit of kick...be it mustard, chillies etc can improve the economy by a further 2%...however the problem is getting the ratios right, and the extra expenditure on the ingredients doesn't make the savings worth while.

If you are daring enough adding 3 table spoons of baking powder + 1 part vinegar in the mix increases the velocity of the engine by 35%...for the sake of £0.03 extra a litre this is fantastic value for money performance.

My friend runs his Mustang using 4 parts V-Power, 1 part Value veg Oil + 1 part vinegar, he swears using the vinegar loosens up all the deposits in the engine and increaes the cleaning effect of the fuel, however does not feel confident in his measurements to try the baking powder.
 
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I'd take all the agro in the world on an internet forum if it saved me £400 a year, however I feel the real reason for scrapping the idea is the fact that it was foolish in the first place.
 
SpeedFreak said:
I'd take all the agro in the world on an internet forum if it saved me £400 a year, however I feel the real reason for scrapping the idea is the fact that it was foolish in the first place.
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When I said not worth the agro I meant the effort needed to do it, from the numbers off the top of my head it was something like 1 pint to 1 gallon of 97RON to get 87RON (97 is used because working with 1 pint is simpler than working with 95RON and a fraction of a pint), so unless you fancy pulling into the petrol station and add a gallon then a pint then a gallon then a pint etc the whole idea ended up being totally infeasible.

You could always wait until the fuel light was on then you could guess how much space was in the tank and add a mix accordingly but it was still so much effort and due to the cost of the petrol substitute it only ended up being a £3 per tank saving so your looking at a ~£200 a year saving and he decided (after id done all the work looking into his idea :P) it wasn't enough to warrant the effort required.

Makes me feel sorry for the guys with classic British cars that have to do this.
 
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