New Shell Nitro + V Power and running lean.

[Eduardo]

Hello guys,

Question for the technical minds here :smokin:

As anyone had a problem with running lean due to the effect of the new added chemicals on the Nitro plus. (Especially race cars)

Apparently it affects the Lambda sensors, causing the car to run lean ?!

Having my mapping checked before Spa, hope i don't have to get rid of the V Power. Full tank at moment.

Thanks.

Eduardo.

[northernjim]

I've not heard this before, bit of a major cock up by shell if its true?


optimax has cleaners in, nitro has 25% more in - would this really affect the lambda's









thanks for giving me something else to panic about on the trip - ignorance is bliss :hahaha:

[shane@mbtech]

Why would it make a race car run lean and not a road car Eduardo?

[_Nathan_]

Where has this info come from?

[Eduardo]

Why would it make a race car run lean and not a road car Eduardo?

Just mentioned race engines as mine is mapped for 99 Octanes and it's so fine tuning.

But again as you said could trigger any lambda sensors. Road cars too i presume .

Few of Terry Buttlers race cars are running lean since switching to V Power Nitro +

I will have mine checked a week on Monday. Will let you know.

Eduardo.

[_Nathan_]

I was asked to look at data from one that popped recently, lambda sensor explanation doesn't make any sense to me based on that.

[Eduardo]

I was asked to look at data from one that popped recently, lambda sensor explanation doesn't make any sense to me based on that.

Ok,

The words that Terry said was, "bring your car in for me to look at your mapping as some of my cars are running lean since using the new V Power" some problem to do with lambda sensors and new additives" .

It's chinese to me, so you must know better :) , why would his cars be running lean on new V Power not sure :smt102.

Thanks,

Eduardo.

[s.mac]

Because the map is wrong ??

[_Nathan_]

The lambda values were indeed lean, but that suggests the sensors are working if the engine is indeed running lean?

Can't comment any further really, the data was missing some crucial things needed to get a proper picture of what was happening. Not going to do any harm to get it back for a check over anyway.

[Eduardo]

The lambda values were indeed lean, but that suggests the sensors are working if the engine is indeed running lean?

Can't comment any further really, the data was missing some crucial things needed to get a proper picture of what was happening. Not going to do any harm to get it back for a check over anyway.

Ok thanks.

Could have got the wrong end of the stick regarding Lambda :) , did hear the word lambda somewhere. Maybe bad reception, could have been talking about his hollidays where he danced to Lambada :)

Can this new additives make a car run lean you think? Or was it coincidence?

Thanks,

Eduardo.

[shane@mbtech]

Ok thanks.

Could have got the wrong end of the stick regarding Lambda :) , did hear the word lambda somewhere. Maybe bad reception, could have been talking about his hollidays where he danced to Lambada :)

Can this new additives make a car run lean you think? Or was it coincidence?

Thanks,

Eduardo.

Likely coincidence

Maybe they are wanting to reign their cars in slightly as a precaution. Might have nothing to with fuel.

[_Nathan_]

I've only seem incomplete data from one car matey so not in a position to say on way or the other, will make a point of noting fuel used over the next few weeks when doing support and looking at Lambda values compared with previous sessions to see if there is a pattern.

[shane@mbtech]

I've only seem incomplete data from one car matey so not in a position to say on way or the other, will make a point of noting fuel used over the next few weeks when doing support and looking at Lambda values compared with previous sessions to see if there is a pattern.

Maybe because the fuel is Better its not retarding ignition and this is causing them to run to full potential of the map which is taking fuelling out at higher rpm.

Although running race fuel as an example on a non race fuel map should be safer?

[Eduardo]

I've only seem incomplete data from one car matey so not in a position to say on way or the other, will make a point of noting fuel used over the next few weeks when doing support and looking at Lambda values compared with previous sessions to see if there is a pattern.

Thanks Nathan,

Eduardo.

[shimmy]

I ran Nitro at Donny and so did Oneill and no noticeable issues

[Eduardo]

I ran Nitro at Donny and so did Oneill and no noticeable issues

Ok, thanks.

Eduardo.

[sailorbaz]

I've been running he new shell stuff for about 1300 miles since leaving Ireland on this trip and had no problems. I have noticed though that the oil reading has gone from 0.8l, 0.7l to 0.5l now. I have oil with me but I've never had to out oil in between services before, why now?

Kinda worried what it might be, will keep an eye on it of course.

[Mike R]

I only ever use V-power in all my cars and as per this post:
http://www.cslregister.com/forum/showthread.php?t=10384

The engine emissions light has come on. I'm waiting until I can get it to Gareth for a proper diagnosis.

Hopefully coincidence?

[Eduardo]

MIne is going on the 3rd of june for checking.

Will keep you posted .

Eduardo.

[Eduardo]

Oh well. No V power nitro for me but you are ok on Road cars.

Something to do with the knocking sensors on race engines compare to road cars.

Didn't take it all in but it damaged two of his race cars with a bill of 5 K for one of them. So 97 for me with Octane booster.

Terry tried to have a word with Shell but not much chance.

Eduardo.

[_Nathan_]

Just supported a 3 hour race using Nitro, was fine.

[Eduardo]

Just supported a 3 hour race using Nitro, was fine.

Ok, do you know what could be happening with Terry's cars? Colin who races for Terry Motorsports as switched to other fuel with octane booster and no more problems ?

Thanks,

Eduardo.

[_Nathan_]

Dunno, can only deal in facts and we ran for 3 hours without issue, not an s54 but a proper race engine in another brand of car, not seen any evidence that would put me off using it so far. If that changes will let you know.

[Eduardo]

Dunno, can only deal in facts and we ran for 3 hours without issue, not an s54 but a proper race engine in another brand of car, not seen any evidence that would put me off using it so far. If that changes will let you know.

Thanks,

Eduardo.

[shane@mbtech]

Is your car running standard knock sensors Eduardo

[_Nathan_]

Not running any knock sensors.

[73CSL]

anyone found ( exhaust wise) that Nitro smells a bit more then the old v-power ( which itself smelt quite sweet )