XSeries-forum

whats best for a 4.4,normal or super?

[quote="jayx5"]
whats best for a 4.4,normal or super?
[/quote]

Super is always best but its your call.

i run the wifes x5 4.4i on shell 95ron seeing as it is lpg converted and only uses petrol until warm, however my e34 525i sport has been on a rolling road at the same place twice, with a chip and cold air induction kit it made 210bhp on shell 95ron and 214bhp run on shell v power. the rolling road days were a month apart and after the first i ran the tank almost empty then filled up solely on v power for the next month before the next rolling road session. both sessions were similar temps.

I also fine that it revs smoother and when i drive normally i get more mpg maybe 2 mpg more. The most important one for me though is on v power I get much better emissions readings come mot time.

As said v power is the best, but an increase in £9 for a full tank of the stuff.
I have just started to use it now, a shell petrol station is now only 2 miles away. Before that I would have had to do a 15 miles round trip for the stuff.
What V power does
1 increase power only if your ECU can advance timing.
2 increase mpg. 
3 runs cleaner.
I can confirm all above in a scooby turbo, but was mapped purely for V power.


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Until recently I was running my 4.4i on Shell V-Power but I couldn't feel the difference performance wise so  didn't see any benefit over Shell Fuel-Save.........ironically the 6 cylinder Z3 ( on standard map) runs noticeably better on the V-Power. 

My Golf V5 runs noticeably better on VPower and you can feel the extra power.  Also run my X on VPower diesel.

BTH only the pros would see the few bhp increase, your talking maybe 5bhp unmapped at best.



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[quote="scooby1doo1"]
BTH only the pros would see the few bhp increase

[/quote]

I wouldn't call myself a pro but thanks for the compliment.  )

My work colleague discovered earlier in the week that his mazda6 2.2d doesnt run particularly well on shell vpower petrol    )

horsepower seemed to go down to 0

Ouch - that's an expensive one !   

[quote="squeaky2"]
My work colleague discovered earlier in the week that his mazda6 2.2d doesnt run particularly well on shell vpower petrol    )

horsepower seemed to go down to 0
[/quote]

Second person I've heard of doing this in the last 24h.

[quote="MJim"]
[quote="scooby1doo1"]
BTH only the pros would see the few bhp increase

[/quote]

I wouldn't call myself a pro but thanks for the compliment.  )
[/quote]
It want a compliment ) but if you can tell you have a max of 5 bhp then well done to you, it was more for the OP,
as in if he was to use V power don't expect 0-60 to drop or be able to get any more speed. It's just a better fuel to use, but at a cost of £9 a tank.


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[quote="Raj"]
[quote="squeaky2"]
My work colleague discovered earlier in the week that his mazda6 2.2d doesnt run particularly well on shell vpower petrol    )

horsepower seemed to go down to 0
[/quote]

Second person I've heard of doing this in the last 24h.
[/quote]

AA Came out drained the tank filled with diesel and away he went.......apparently its only really bad if you do it more than 2 or 3 times.

Just as he was towed into the petrol garage another guy in a van walked over to say he had just filled his van with petrol.

Apparently happens every 3 1/2 minutes or something like that.    150,000 people a year!

Well what a relief the X5 won't let you put petrol in !

[quote="squeaky2"]

AA Came out drained the tank filled with diesel and away he went.......apparently its only really bad if you do it more than 2 or 3 times.

Just as he was towed into the petrol garage another guy in a van walked over to say he had just filled his van with petrol.

Apparently happens every 3 1/2 minutes or something like that.    150,000 people a year!
[/quote]

Didn't realise it was quite as often an occurrence as that. Wow.