Hi!

First off all, Im from norway and here's what we've basically got;

Regular 95octane
Shell V-power 95octane
Regular 98octane
Shell V-power racing 99octane

Ive been running the v-power 95octane since they dont sell the v-power racing wher I live.
Ive been reading around on the net and watched a couple of films showing the "cleansing" effekt of the v-power against regular fuel.

BUT, I kinda feel like it doesnt run as good as the regular 95octane, and it smells a bit worse from the exaust.
Could it be something in this? Or should I visit the doctor? =>

Ive never really tried the 98octane, does it really matter?

The reason i wanna run the v-power is obviously because of the better care its suppose to take of the engine.

Is there any logigal reason for the rotary to run poorer on this fuel?

A link to the official v-power showcase **** - http://www.shell.com/static/no-no/do...r_300Kbits.wmv

 

I should add that I had my enginge replaced shortly after i bought it, Have driven it for about 4k, only on v-power untill a few weeks ago when i decided to try the regular.

 

The 8 should run just fine on 95 octane. Unless you're running FI, I don't really expect you'd get more power out of 98, so save your money.

V-power has additives in it, which is why it's going to smell different at your tailpipe, but it shouldn't be detrimental to your engine.

I am very skeptical of the amount of benefit detergent gasolines have on your engine, especially when considering the increased price. If i were going to run it, I'd fill up with a tank of v-power once a month or so and run the RPM's high to clear the carbon from the seals

One last thing i thought of
How does Norway's gasoline octane rating system compare to Americas? You normally only see 85- 89- and 91 octanes in the US.

 

I am kinda skeptic too, but the prising is only marginal higher than the regular, I would like to run the v-power in good belief but I feel i doesnt run as good as with regular fuel, I was really wondering if this could be true/logical..
And with the octane rating, Im really not sure... => Sounds like your soupe is quite weak but its maybe just different ratings, So it could have the same properties.
..BUT, i really dont know

 

i'm jealous... 102 unleaded octane around here is about 8.00 US dollars for Shell stations that stock it. but we generally have 87-92 octane.

 

How much is ur regular fuel?
1litre of fuel here is about 12-13kroner(over 2 dollars) so no whining =>

 

it vary's +/- .50 Cents U.S. Seattle area just jumped up .30 cents to 2.50 for 92 octane in the last week. Regular typical is -20 cents from our 'premium' grade 92'...

 

Here in NJ Shell is always higher than everyone else and i think V-power is over rated.

 

driving across the tunnel from ny to nj the gas prices drop 30c+

 

I live in Cyprus and yes i joined the new engine club :P
Past engine seemed to run lean, apparently very lean.
Anw.... with the new engine on i decided i will use 100 octane hi quality fuel from EKO (greek company operating in Cyprus as well). With the past engine i used to use 98 octane from a particular station.
With the new engine i did about 1000km and consumption is much better than in the past, here is my consumption compared with the old engine:

NEW ENGINE
100 octane abt 15L/100km
98 octance abt 15,5-16L/100km

OLD ENGINE
98 octane 17L/100km

I read somewhere in the forum that fuel hi in octanes are more difficult to choke therefore driving in low RPMS (i.e. city driving) should have negative effect in consumption.
I have to say that with the new engine up until now i didn't redline. MAX 5K RPM.
Anw....
Could anyone clarify things out regarding fuel?
Now i am running with 98 octane but i will switch to 100 due to the fact that 100 oct is little more expensive and you are supposed to get the most out of the renesis.


P.S: in europe we use octane and in US you use rons. just a different metric system.

 

In US, our retail octane rating is derived as (R+M)/2. It's the average of the Research and Motor Octane. Speaking of which ((R+M)/2), I usually run 87. I ran higher for awhile based on condition of my original spark plugs, but I've since returned to 87. It seems more than adequate and gives better mileage for me.

Typically I use Shell.