Fuel additives/Dipetane efficiency?

peasant

stevenmu wrote: »

Has anybody tried using dipetane, and then trying some tanks of fuel without it? If it works by cleaning the engine then I'd guess it would work just as well if it's only used a few times a year instead of in every tank.

Dragging this up again ...

Over the last few months I have a very steady commute with almost consistent traffic and road conditions every day and over the last weeks I have adopted a less fuel intensive driving style.

Several brimmed tanks have confirmed that my fuel consumption is now steady at 8.1 to 8.3 liter/100 km. The second last tank fill I ran without dipetane for test purposes and drove just the same as always ...consumption was up by a full liter to 9.1 l/100 km. The latest fill today (after driving a full tank with dipetane) brought it right down to 8.1 again.

So I'm sold on it.

Even if it wasn't for the clear advantage in fuel consumption (12 % is not to be sneezed at), my purely mechanical diesel sounds like purring kitty with dipetane and like a bag of spanners without it ..that alone has me convinced

_Conrad_

unkel wrote: »

+1

Feel free anyone to try and / or believe for yourselves though

Just guessing here but how many of the cars still on the road today would be old skool normally breathing diesels? Maybe one in a thousand cars?

around here there are still many 1.9d vws (vento, golf 3, caddy, polo), non turbo transits (LOADS of them), citroen berlingos, peugeot partners, escort vans, non turbo citroen and peugeot cars, toyota corolla and carina 2.0d, hiace, 90s hilux. nissan almera and primera 2.0d. skoda felicias, nissan cargo/serena.

Not a lot of 80s stuff BUT most of those non turbo diesels have their roots in the 80s and are very crude and not any bit advanced

Tragedy

Anyone know where this can be bought for a reasonable price in 5l containers around Dublin South?

-Chris-

Most motor factors have it tbh. The price would be very similar among all of them.

Tragedy

The few I've been in only seem to stock the 1l bottle tbh! And even there, I haven't seen it under €14 a bottle since last year

GTE

peasant wrote: »

Dragging this up again ...

Over the last few months I have a very steady commute with almost consistent traffic and road conditions every day and over the last weeks I have adopted a less fuel intensive driving style.

Several brimmed tanks have confirmed that my fuel consumption is now steady at 8.1 to 8.3 liter/100 km. The second last tank fill I ran without dipetane for test purposes and drove just the same as always ...consumption was up by a full liter to 9.1 l/100 km. The latest fill today (after driving a full tank with dipetane) brought it right down to 8.1 again.

So I'm sold on it.

Even if it wasn't for the clear advantage in fuel consumption (12 % is not to be sneezed at), my purely mechanical diesel sounds like purring kitty with dipetane and like a bag of spanners without it ..that alone has me convinced

Would I be right in saying that in a 55 liter tank you are getting 76 extra km per tank? 6.3 liters saved? Tell me if my maths is wrong. I haven't worked my brain this hard since secondary school.

55 (liter tank) / 8.1 (liters per 100km) = 6.79 * 100 = The range you get from 55 liters doing 8.1 L per 100km.

55 / 9.1 = 6.03 * 100 = 603km range = The old range.

(8.1/100)*76 = 6.156 which is the liters used for the saving.
6.156 liters * 1.479 (pumps.ie average price) = €9.10 saving per fill.

1 liter of Dipetane = 200 liters of diesel = 14euro as per above post.

200 liters = 3.63 fills of a 55 liter tank.
€9.10 * 3.63 = €33 saving across a 1 liter bottle.

€33 - €14 = €19 saved across 200 liters of diesel at the current average price?

19/3.63 = €5.20 saved per fill.

http://www.speedyparts.ie/shop/index.php?main_page=index&cPath=22903

EDIT:
At €42.50 for 5 liters the saving would be (using one liter of the 5 liter bottle)
€33 - €8.5 = €24.50 saved across 200 liters (1 liter of Dipetane from 5 liter bottle)

€24.50/3.63 = €6.75 saving per fill.

€24.50 * 5 = €122.5 saving across using the whole 5 liter bottle, 1000 liters.
1000/55 = 18 fills of a 55 liter tank.

I have already gotten about 75 to 100 miles extra to a tank my avoiding the motorway at all costs.

I better be right because this cup of tea I am making is going to taste fantastic!
EDIT2: My spell check is doing spelling it as liter but now I am confused as to which is right.

peasant

200 liter @ 9.1l/100 km = 2197.8 km
200 liter @ 8.1l/100 km = 2469.1 km

extra distance per bottle of Dipetane = 272.7 km

price of 272.7 km at 9.1l/km and €1.48 / liter = 36.63 Euro - price of bottle = saving of 22.63 euro per bottle

:D:D

GTE

peasant wrote: »

200 liter @ 9.1l/100 km = 2197.8 km
200 liter @ 8.1l/100 km = 2469.1 km

extra distance per bottle of Dipetane = 272.7 km

price of 272.7 km at 9.1l/km and €1.48 / liter = 36.63 Euro - price of bottle = saving of 22.63 euro per bottle

:D:D

I am going to out on a limb and say that I was nearly right I'm messing my mind up from reading yours.

Either way I am sold too. Gonna get me a 5 liter yoke if that internet price is good.

TestTransmission

Tragedy wrote: »

The few I've been in only seem to stock the 1l bottle tbh! And even there, I haven't seen it under €14 a bottle since last year

Pretty sure I bought a litre bottle a month or two ago for €10

testarossa40

Tragedy wrote: »

Anyone know where this can be bought for a reasonable price in 5l containers around Dublin South?

€10.50 a litre in Southside Motor Factors though they charged me €10 even - don't know if they do 5l containers:
http://southsidemotors.goldenpages.ie/

Worth every penny as Peasant has cited & I thoroughly agree.

peasant

update:

just bought 5 liter for 32 Euro (Top Part, Sligo)... so €6.40 per liter.
That throws the above calculations out a bit

dharn

is it more likely to be best for old type mechanical fuel pump/injectors or modern electronic injector systems or is it suitable for both i have an 06 bmw 320d which runs fine and an 95 mits pajero 2.8td which has poor acceleration and flat spots as you accelerate

peasant

peasant wrote: »

update:

just bought 5 liter for 32 Euro (Top Part, Sligo)... so €6.40 per liter.
That throws the above calculations out a bit

Going to give it a try. Ya didnt spot how much a litre is in the same top part?

peasant

Deleted User wrote: »

Going to give it a try. Ya didnt spot how much a litre is in the same top part?

They didn't have liter bottles

pa990

most people who try dipetane and post here are using diesels,
what are those of you with petrol engines experiencing with dipetane ??

Matt Simis

pa990 wrote: »

most people who try dipetane and post here are using diesels,
what are those of you with petrol engines experiencing with dipetane ??

I found a much lower difference with petrol engines, think Ill give it a shot again though.

TestTransmission

Matt Simis wrote: »

I found a much lower difference with petrol engines, think Ill give it a shot again though.

I found a small improvement aswell,petrol engine btw

Top Dog

Didn't notice much difference at all on our petrol car - though only ran it through about 4 tank full's so possibly not enough time to make a difference.

Been very impressed with it on our diesel though, and now always have a bottle in the back.

-Chris-

I thought Dipetane only worked while it was in the tank, and the effect is gone when the additive is gone.

Did you experience benefits beyond the fuel you treated - i.e. did the benefits hang around?

TestTransmission

-Chris- wrote: »

Did you experience benefits beyond the fuel you treated - i.e. did the benefits hang around?

Nope, BG on the other hand :pac:

-Chris-

TestTransmission wrote: »

Nope, BG on the other hand :pac:

But that's why I'm asking - the stuff I hear about the competition is from HQ, and therefore is potentially being "spun" to their advantage. It's what the end-user experiences that's important!

TestTransmission

Neither had any long lasting effects,as far as I can tell

pa990

TestTransmission wrote: »

I found a small improvement aswell,petrol engine btw

Was the small difference enough to balance out the cost of buying the dipetane?

TestTransmission

pa990 wrote: »

Was the small difference enough to balance out the cost of buying the dipetane?

Yeah,defo.The dipetane was like €10 for one of these

pa990

TestTransmission wrote: »

Yeah,defo.The dipetane was like €10 for one of these

I picked up a 5L bottle for €38 , if it doesn't impress me when it's in the car, ill probably try it in the home heating

dharn

how will you check how many mpg your house is doing !

pa990

dharn wrote: »

how will you check how many mpg your house is doing !

i'll use these guys
http://www.subsidence.ie/index.php?page=subsidence

opinion guy

pa990 wrote: »

i'll use these guys
http://www.subsidence.ie/index.php?page=subsidence

Lol.....genius!

opinion guy

Right.

Whatever garage I filled up on lately must be using an old slurry tank to store diesel cause my poor baby is running dog rough right now. So as a stress test of this i'm going to horse some dipetane today with a big drive ahead tomorrow and see if it makes any difference.

opinion guy

Ok so - I horsed in some dipetane and did my drive. Gotta say the car did seem alot smoother straight away. On a run that I recently did with no dipetane late at night, about 80km, with cruise control set the whole way and no interruptions the trip computer told me I did 5.8l/100km. Same run today in heavy traffic with lots of slowing down and speeding up and me driving more aggresively to be honest due to pure frustration with muppets and with dipetane in the tank I expected worse consumption. The trip computer reported 5.5l/100km !!!!:eek:

Wow I'm surprised to be honest. And impressed. I have to say though, and it may be my imagination, but I felt I had a little less power than usual.