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Shell v-power, any good? #267282
07/28/09 6:24 pm
07/28/09 6:24 pm
Joined: Dec 2007
Posts: 468
Denmark
Ducknaldo Offline OP
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Ducknaldo  Offline OP
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Posts: 468
Denmark
First of all, I dont have any problems running 95 octane fuel with my 9:1 compression.

But if you wanted to increase compression, I guess youīd need higher octane gasoline, than 95 octane, or?
We can get 99 octane gasoline, but itīs Shellīs V-Power with Friction Modification Technology as they call it on their website.
Is there any formula for how high compression you can have with a certain octane level?
How would these friction modifiers affect our old bikes?

Last edited by Ducknaldo; 07/28/09 6:26 pm.

*******************
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1969 T120
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Re: Shell v-power, any good? [Re: Ducknaldo] #267292
07/28/09 7:03 pm
07/28/09 7:03 pm
Joined: Jul 2009
Posts: 6
Rochester.Kent.England.
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Burn Offline
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Burn  Offline
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Joined: Jul 2009
Posts: 6
Rochester.Kent.England.
Oh yes indeedy.I"m an ex Subaru parts guy,later Sti"s especially with PPP kits fitted suffered poor running,pinking(pinging)and general messing about.IM the UK importer recomended switching to V-Power,end of probs.As I understand it v_Power is garanteed to be 98 at the pump not just when it left the refinery.After good feed back from customers I switched my old Porker 944 onto it.Nearly died the first time I filled up (expensive or what) but after about two/three tank fulls fuel ecconomy improved so that if I ran ordinary,ordinary super or v-power it still cost me Ģ25/week to get to work and back.Better starting,smoother running and at lower temp where all noticable benefits.This thought also crossed my mind-to garantee 98 at pump it left refinery higher-find filling station with good turnover of v-power(like the one I used)and it could be nearer 99/100.Now whether the benefits will be as noticable on older carbed engines I don"t know (loathe to fill the cd250 up with it as it would cost about the same as the bikes value)but I suspect that like all modern fuels shelf life is short so needs to be in vehicle that is getting regular use.Hope ths helps,not scientific I know but coz of Scotts blood I will not waste money and I could genuinely notice improvements using it.

Burn.

Re: Shell v-power, any good? [Re: Burn] #267330
07/28/09 11:06 pm
07/28/09 11:06 pm
Joined: Jun 2007
Posts: 5,557
Maui Hawaii
HawaiianTiger Online content

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HawaiianTiger  Online Content

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Posts: 5,557
Maui Hawaii
Well, there's V-Power and then there's V-Power it seems. My local station's V-power is 92 Octane (US style calc.)with up to 10% ethanol. That's on a good day. It's the same stuff that gave my Norton's fiberglass tank the leprosy. It gives sooty plug readings even when the carb is dialed in and makes my Hyundai knock like hell. My bikes are alright though. The Norton has a good combustion chamber and the Triumph has 7.5:1 cr. Kawasaki Baby doesn't care.
Bill

Last edited by HawaiianTiger; 07/28/09 11:07 pm. Reason: lesdyxia

Bikes
1974 Commando
1985 Honda Nighthawk 650
1957 Thunderbird/T110 "Flying Tiger"
Antique Fans: Loads of Emersons (Two six wingers) plus gyros and orbiters.
Re: Shell v-power, any good? [Re: Ducknaldo] #267375
07/29/09 4:43 am
07/29/09 4:43 am
Joined: Nov 2008
Posts: 2,712
Bishop, Calif.
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desco Online content
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desco  Online Content
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Joined: Nov 2008
Posts: 2,712
Bishop, Calif.
They are sticking nitrogen in the Shell 91 octane gas in California and if you get it on your hands you can't wash the stink off, takes two days to wear off. I quit using it even though I can walk to the Shell station. Send me 5 gallons/liters of your high octane and let me test it.


1968 T120R
1972 T120RV
Any advice given is without a warranty expressed or implied.
Re: Shell v-power, any good? [Re: desco] #267386
07/29/09 6:20 am
07/29/09 6:20 am
Joined: Dec 2007
Posts: 468
Denmark
Ducknaldo Offline OP
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Ducknaldo  Offline OP
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Joined: Dec 2007
Posts: 468
Denmark
There seems to be very big difference between the gas sold in Europe, compared to the american stuff.
Most of the gas posts and complaining is from over there.
I guess Iīll just have to test this V-Power stuff.
So nobody knows if there is some kinda formula for calculating compression V. octane?
I guess 99, should be ok, even with 11:1.


*******************
Run `em...
*******************
1969 T120
Re: Shell v-power, any good? [Re: Ducknaldo] #267399
07/29/09 8:22 am
07/29/09 8:22 am
Joined: Apr 2008
Posts: 266
Bordon, England
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Derry Hincks Offline
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Derry Hincks  Offline
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Joined: Apr 2008
Posts: 266
Bordon, England
<calculating compression V. octane>
There is probably a rule of thumb Duckanaldo but I would imagine it is more to do with engine design. For instance my other bike has a CR of 12:1 but runs quite happily on 95 ron.

I did try several tank fulls of V-Power in my car (a V8 with knock sensor) but to be honest couldn't feel any difference.

Derry.


Derry.

1969 T100S under reconstruction
GSX-R750K2 (having been rebuilt from a crashed wreck)
Re: Shell v-power, any good? [Re: Derry Hincks] #267402
07/29/09 8:37 am
07/29/09 8:37 am
Joined: Oct 2003
Posts: 3,524
Emsworth, sunny south of Engla...
D
dave jones Offline
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dave jones  Offline
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Joined: Oct 2003
Posts: 3,524
Emsworth, sunny south of Engla...
I use V power all the time with no problems at all.

Re: Shell v-power, any good? [Re: dave jones] #267403
07/29/09 8:45 am
07/29/09 8:45 am
Joined: Dec 2007
Posts: 468
Denmark
Ducknaldo Offline OP
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Ducknaldo  Offline OP
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Joined: Dec 2007
Posts: 468
Denmark
Ok Dave, that answers part of my question.
I was thinking that maybe these friction modifiers could have some unwanted effects, but this does not seem to be the case.
When it comes to my motorcycle I dont care about the price on gas, so maybe Iīll try a few tanks of V-Power and try to spot a difference.
I suspect I should be able to see it at least on km/liter.
Right now I drive around 20 km/liter.


*******************
Run `em...
*******************
1969 T120
Re: Shell v-power, any good? [Re: Ducknaldo] #267405
07/29/09 8:49 am
07/29/09 8:49 am
Joined: Aug 2001
Posts: 1,081
Cheshire UK
Phatt Bob Offline
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Phatt Bob  Offline
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Posts: 1,081
Cheshire UK
I run V power in the Daytona 1200 (12:1) and the 850 8 valver (11:1) with good results. Last time I had one of them dyno'd the guy said he'd run Optimax (as it used to be called) up against C16 race fuel and couldn't tell the difference, 'cept it was cheaper.....

Bob


Phatt Bob
'95 Daytona 1200
'98 Daytona 1200 dragbike
ex-850 T140 Caff Racer, 850 Triton, Morgo T120, Starfire and Pretend Daytona 500 owner
Re: Shell v-power, any good? [Re: Phatt Bob] #267425
07/29/09 11:55 am
07/29/09 11:55 am
Joined: Mar 2008
Posts: 341
Lower Rhine Area, Germany
Towner Offline
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Towner  Offline
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Posts: 341
Lower Rhine Area, Germany
Hi Ducknaldo,

I discovered, that my bike runs best with this 100 octane fuel (with 9:1 pistons). So you can say, that the best fuel is good enough for this bikes. Due to the friction modifiers - I don't believe that it would have any effect either positive nor negativ. That can't be compared with oil additives.

Ralf


Triumph Bonneville 650 T120RV 1972
Norton Commando 850 MKII 1973
Re: Shell v-power, any good? [Re: Towner] #267478
07/29/09 3:32 pm
07/29/09 3:32 pm
Joined: Mar 2005
Posts: 10,022
Boston, Massachusetts
J
John Healy Online content

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Joined: Mar 2005
Posts: 10,022
Boston, Massachusetts


Re: Shell v-power, any good? [Re: John Healy] #267482
07/29/09 4:11 pm
07/29/09 4:11 pm
Joined: Dec 2007
Posts: 468
Denmark
Ducknaldo Offline OP
BritBike Forum member
Ducknaldo  Offline OP
BritBike Forum member
Joined: Dec 2007
Posts: 468
Denmark
That was quite an interesting link.
What confused me a bit is that apparently gasoline has to have at least 8 and max. 10 percent ethanol among lots of other stuff, which I really dont understand.
Many americans in here seems to be complaining about this fact.

Is the european fuel quality really that much better or are americans a bit whiney? whistle

In Denmark we only have Texaco and Shell that are on this list, probably some other smaller retailers also live up to it, but didnīt need to go on this list because almost nobody know about it anyway.
At least, itīs the first time I ever heard about such a list, but Iīm quite sure it will influence my choice of fuel retailer from now on.
Well, not for an old junk car, but at least for my Bonnie wink
I like the fact that combustion chamber deposits has to be within certain limits to meet the standard.
Certainly something to think about here, if you want to do the best thing for your engine and I think most of us do.


*******************
Run `em...
*******************
1969 T120
Re: Shell v-power, any good? [Re: John Healy] #267522
07/29/09 6:58 pm
07/29/09 6:58 pm
Joined: Mar 2005
Posts: 10,022
Boston, Massachusetts
J
John Healy Online content

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Joined: Mar 2005
Posts: 10,022
Boston, Massachusetts
If not lugged or over loaded a Triumph 650 should run well on PON (pump octane number R+M/2) 89 which would have a RON (the old US number and that used by the rest of the world) of 92 to 94.

In the worst case one could use PON 92 (R+M/2) which would have a RON of 95 +.

Because of other factors, including vapor pressure and additives commonly found in Premium gasoline blended for injectors, USA PON 89 will often perform better in a Triumph 650 than PON 92.

Although it is mandated here in the USA by the EPA that the current pump gasoline must be useable in vehicles using carburetors, modern gasoline is primarily blended for use with fuel injectors. This can be a problem if the mandated additives, which allow modern gasoline to be used in carburated vehicles. There seems to be ample proof that some companies are doing a better job with their additive packages. (see Top Tier Gasoline above). Their is little, if any benefit, from using AV gas or racing fuel. Both have their own issues.
Just My Observations
John


Re: Shell v-power, any good? [Re: John Healy] #267527
07/29/09 7:08 pm
07/29/09 7:08 pm
Joined: Dec 2006
Posts: 3,878
Massachusetts, U.S.A.
B
btour Online content
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btour  Online Content
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Joined: Dec 2006
Posts: 3,878
Massachusetts, U.S.A.
Anybody know what the C-tang (sp) rating is. I do not even know if it applies to gasoline engines of just Diesal.

There was a guy my age at Lubrication Valhalla. He has spent his life rebuilding huge Deisals. He was kinda slipping in out of gas and Deisal problems so I do not know.

All I know is that there were major problems with US C-tang quality, and break in and performance.

He dynos these Deisals, and modifies them to make them work. Fascinating.


Bob, Lifetime bike: '71 T120R, bought in '71 at Ken Heanes, England.
Re: Shell v-power, any good? [Re: btour] #267528
07/29/09 7:18 pm
07/29/09 7:18 pm
Joined: Mar 2005
Posts: 10,022
Boston, Massachusetts
J
John Healy Online content

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John Healy  Online Content

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Joined: Mar 2005
Posts: 10,022
Boston, Massachusetts
The Cetane rating is for Diesel only.
HTH
John



Moderated by  John Healy 


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