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Kit

Super or not?

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Hello

 

My late 520i Touring passed everything on the MOT apart from being slightly over the limit on the lambda test during the emissions check.

 

Sorted by adding injector cleaner into a half tank of Shells Super Unleaded.

 

Got me thinking - is it worth putting in a tank of that say every 4 fills? Or all the time?!

 

In your opinion is it worth the extra money? Before the mot I didn't think to bother with it as I didn't feel I'd notice the performance difference in this or my other cars apart from my old 911.

 

Thanks in advance for you thoughts.

 

Kit

 

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Probably needs a good Italian tune up

 

 

Sent from my iPhone using Tapatalk

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yeah a good thrashing that M50s love a normal non supermarket unleaded is what id use.  Like you say i'd not run it on super 

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Regular Shell Unleaded is what I use too, but it's more about driving regularly and sometimes thrashing it to the limit too - at the end of the day, it has to be driven properly from time to time :)

Edited by Blackman
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Regular Shell Unleaded is what I use too, but it's more about driving regularly and sometimes thrashing it to the limit too - at the end of the day, it has to be driven properly from time to time

 

Odd thing was I driving it hard the day before the Mot, both a motorway run and on country lanes (have to say it's taken me a while to heal toe in comfort with the Bmw pedal setup) and hit the 'Italian end' of the rev counter often.

 

But only after adding super and driving in second at 40mph for a while did it pass. Perhaps the latter is what it needed but defo should have cleared the day before.

 

That's why I feel the additive and the petrol may have helped.

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