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- - The Fuel Experiment (http://forums.sv650.org/showthread.php?t=65522)

The Fuel Experiment

Just though you might like to see a little fuel experiment that I'm running, the updates are going to be on my blog but here are the first 2 days posts:

Quote:

Just lately my GT has be running rather rough, possibley due to the cold weather and carb icing and possibly bad spark plugs. This is giving me some rather awfull fueling. I sometimes get home with the reseve light flashing, which normally never happens. So other then replacing the spark plugs which I'm doing later this afternoon I though I'd give some of the BP Ultimate fuel a try. After all its ment to give you a cleaner engine, better performance, Better fuel economy, and less polution. I've also been told it may even inprove the problems with carb icing, so I thought what the hell.
The fuel is rather more expensive at 94.9 per litre, compared to the 86.9 I get from Morrision, but maybe just maybe that cheap fuel is not doing my bike much good. The bike can't drink the fuel much worse then it is and it was almost empty due to a rather hungry trip. £17.51 later for 18.45 litres the bike is full and I'm off, I can say when I got to work the bike appears to be running better with less cut outs and what appears to be more fuel left. Lets see what happens over the next few days.

Current fuel figures. (newest - oldest)
(Mpg 34.5) KM per Litre:12.21 Pence per mile:11.45 (very cold day)
(Mpg 38.7) KM per Litre:13.7 Pence per mile:10.21 (cold day)
(Mpg 43.03) KM per Litre:15.23 Pence per mile:9.07 (nice - bit wet)

Quote:

Looking good, notice a much more responsive bike, and what seems a better economy. So I manage my 130 round trip and get back to the pump this morning. Fill up and manage £13.13 for 13.84 litres, much better. Almost like what it was before this bad weather set in, lets see those figures then:

(Mpg 42.7) KM per Litre:15.11 Pence per mile:10.10

Much much better, now that may have been due to a number of factors so I'm going to have to run this for a few days. As maybe I was just taking it easy due to the problems with the bike, also when I replace the plugs I may even get better performance. But I am happy so far, the bike is back to the £13 fuel mark that its was at for now. Which means the extra cost has been equally offset by the improvements in economy and performance.

This is all on my other blog 'Bikers View'

Interesting, I also heard that the premium fuel helps with carb icing and fuel economy.

Never really tried it though cause the price for the premium fuel is a lot more than the regular stuff, mind you I do a lot of miles so maybe every now and then I should chuck some premium fuel in the bike to keep the engine in good nick..

Quote:

Originally Posted by Iceman

The reason I did it when the bike was empty was to limit the amount of cheap fuel running my results and canceling out any bonus. So you may want to be careful of just adding it every now and again. Also I have no idea of how effective this would be on a modern engine, as the GT I'm on is 11 years old now. Most modern engine managment may cancel these gains out.

The Shell garage in Farlington (near the Hilton) is cheaper than BP and it is 98 ron over BP's 97 ron.

Quote:

Originally Posted by Scoobs

The Shell garage in Farlington (near the Hilton) is cheaper than BP and it is 98 ron over BP's 97 ron.

I did think about that.. I may try it after my experiments have ran for a little while, I don't want to polute the results. :wink: Plus at the moment I'm getting necture points.. :lol:

Does it make much of a difference if say there is 35% fuel left in the tank that is on the regular fuel, then top it up with premium fuel?

I guess my question is does this effect the engine in any way? I have mixed fuel types in the past and have not had any trouble, but then I never really thought about it :!:

Quote:

Originally Posted by Iceman

Well all the info I've seen say it should be fine.. though I want to get the best results I can so I wanted to ensure I had the least old fuel in it as possible.

This is the site I use the get the mpg figures:

http://www.torquecars.co.uk/Tuning/u...calculator.php

Thanks, that is a pretty cool site.

Will make a note on next fill up and see what I get..

Good luck with your experiment.

Quote:

Originally Posted by Iceman

Thanks, that is a pretty cool site.

Will make a note on next fill up and see what I get..

Good luck with your experiment.

it also stores the last 4 results.. which is handy...