yostumpy wrote:

just read on another 'ECO' forum, that a 1 gallon of dino produces approx 140,000 btu's. BUT 1 gallon of SVO (straight veg oil) prduces approx 130,000 btu's, so it takes 1.1 gallons of svo to give equiv. power as 1 gallon of dino. so if ( its late and I was always bad at problems) . Dino costs 140p a litre, svo ,say, 100p ltr , mixed 50/50, taht would be equiv of 140+100 = 240 div x 2 = 120 ltr saving 20pltr x 4.54 = 91p a gallon cheaper . But at the lower power output. hmm...
ok
1 gal dino=140px 4.54= £6.36 .
1 gal of svo = 100p x 4.54= £4.54x1.1=£5.
2 gals (1 0f each) £6.36+£5.0=£11.36 div x 2 =£5.68
saving £6.36-£5.68 saving 68p gallon.

So Running 50/50 only saves you 68p gallon.
BUT bearing in mind the 110's tank is 70 ltrs= 15 galsx68p= £10.50 per tankful saved. (about 3 pints of Guinness)

lambert.the.farmer wrote:

yostumpy wrote:

just read on another 'ECO' forum, that a 1 gallon of dino produces approx 140,000 btu's. BUT 1 gallon of SVO (straight veg oil) prduces approx 130,000 btu's, so it takes 1.1 gallons of svo to give equiv. power as 1 gallon of dino. so if ( its late and I was always bad at problems) . Dino costs 140p a litre, svo ,say, 100p ltr , mixed 50/50, taht would be equiv of 140+100 = 240 div x 2 = 120 ltr saving 20pltr x 4.54 = 91p a gallon cheaper . But at the lower power output. hmm...
ok
1 gal dino=140px 4.54= £6.36 .
1 gal of svo = 100p x 4.54= £4.54x1.1=£5.
2 gals (1 0f each) £6.36+£5.0=£11.36 div x 2 =£5.68
saving £6.36-£5.68 saving 68p gallon.

So Running 50/50 only saves you 68p gallon.
BUT bearing in mind the 110's tank is 70 ltrs= 15 galsx68p= £10.50 per tankful saved. (about 3 pints of Guinness)

So when you factor in new pump seals, recon injectors, more fuel filters an changes and more engine oil and changes one really needs to be doing a pretty high mileage for there to be much of a saving? I have to remain unconvinced on this one, also let's not forget that the basic design of the tdi took place in the 1980's and back then dino diesel was the only common type and as such is what Bosch designed the fuel system for.

SVO won't harm the pump seals, or any other seals, BUT the chemicals they put in Bio will. I tried morrisions B20 a while back, (20% bio,80%dino) and within a week the seal on the tank around the sender unit started to weep. I stopped using it straight away, and stuck to svo, and it healed itself.. More fuel filters? Oh no, only the first one, then its business as usual. More engine oil and filters? Oh no, 5-6k as usual. Injectors? mine are 130k old now, and prob nearly 30k on svo blend. Passed Mot on fri at 1.41 ppm smoke density, or whatever it is. I take it you don't partake of the veggie blend then? So why are you reading this topic?

lambert.the.farmer wrote:

I read the thread in the seemingly vain hope that someone with the research and development budget of say Bosch or land rover could offer me a sound and reasoned scientific argument that alternative fuels to those an engine was designed for were safe to use, instead of another back street hero trying to tell me that they and or their mates have done such and such for ages with no worries. Sorry, I'll take my leave and let you get back to finding the next miraculous way to save 10p a week..

yostumpy wrote:

lambert.the.farmer wrote:

I read the thread in the seemingly vain hope that someone with the research and development budget of say Bosch or land rover could offer me a sound and reasoned scientific argument that alternative fuels to those an engine was designed for were safe to use, instead of another back street hero trying to tell me that they and or their mates have done such and such for ages with no worries. Sorry, I'll take my leave and let you get back to finding the next miraculous way to save 10p a week..

Funny , I'd have thought that coming from Yorkshire, 10P a week, would be twice your annual salary.
I'm not asking you to try it!
I'm not selling it!
I didn't start this topic!
I have used it for 3 years!
I have had no problems!
Now tell me what fuel Rudolph Deisel designed the engine to run on? PLEASE don't say Shell V deisel.

Mountain_man wrote:

Yes, you are missing something. You can use up to 2500l of vegie oil for personal transport use without informing HMRC.

pom wrote:

you can allways make diesel from used engine oil, trucking firms have loads of the stuff to give away. The process is a bit more messy though.

Pom

I think you'll find that that IS illegal. IIRC where as veg/bio/blend is tax exempt up to the 2500ltrs pa (this is per person mind you, so a partner has the same alowance, = 5000lts pa) because it is a fuel substitute, mineral oil derivatives are a definate nono, (vehicle confiscation/huuuuuuge fine type naughty.) I have had occasion to tip a wee bit of filtered engine oil in t'tank for a bit of looberication!!!! Does stink tho! Not like nice vegy smell. Different oils smell differently, some smell chippy, some smell burgery, some smell doghnutty! cant remember which is which now.
I only travel about 7-8k pa, but my '10p a week' saving equates to at least my annual road tax and mot costs. But I wouldn't bother if I were you.