Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
|
been using normal 95 ron fuel since i bought the car. just put some tesco momentum (99 ron) in and wondered if there was any point doing so?
i used to run my focus on it and it ran a lot better/smoother but was more smokey.
unsure whether theres any point using it for a long period in the z4.
|
AndyCorsaSport
Member
Registered: 12th Feb 06
Location: Horsforth, West Yorkshire
User status: Offline
|
Supposedly better MPG. I always used V Power in my 182.
|
SetH
Member
Registered: 15th Jul 01
User status: Offline
|
M54 Engine
- The engine is able to adjust automatically to all fuel grades between 87 and 98 octane.
- Anti-knock control automatically adjusts the engine's running conditions to the respective fuel grade and quality.
- Please note that the engine's maximum output is only achieved when running on 98 octane premium fuel.
FYI I run mine on normal super unleaded, don't usually bother with VPOWER
I dont put 95 in.
|
Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
|
nice little bit of info there, cheers.
i thought tesco momentum was 99 octane though?
feels quick enough with 95 in anyway.
|
SetH
Member
Registered: 15th Jul 01
User status: Offline
|
The sticker inside my fuel cap says use 97 only.
I doubt you are making the full 231bhp going on that information but I guess it is probably negligible.
|
Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
|
good point.
does the engine adjust straight away or would it need a few tank fulls before you get an increase in power?
|
SportBoy
Member
Registered: 5th Oct 01
Location: Retford, Nottinghamshire
User status: Offline
|
ive always been under the impression that there isnt much point with a non turbo.
|
SetH
Member
Registered: 15th Jul 01
User status: Offline
|
The knock control would retard your ignition timing on 95 octane I would have thought.
I expect pretty much straight away or it would not be a very good system.
|
Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
|
quote: Originally posted by SportBoy
ive always been under the impression that there isnt much point with a non turbo.
thats what i've always been led to believe. it's a lazy 3.0 engine that isn't high strung in the slightest, but just wondered if it would make the car run smoother/less smokey/better fuel economy.
|
SetH
Member
Registered: 15th Jul 01
User status: Offline
|
quote: Originally posted by SportBoy
ive always been under the impression that there isnt much point with a non turbo.
You can still get det on an N/A engine although the risk is much less when comparing to a high output turbo application. Any modern engine should be able to adjust via knock control to fuels with differing octane ratings. They really would be minor adjustments in ignition timing.
|
SetH
Member
Registered: 15th Jul 01
User status: Offline
|
Ben stop putting pikey fuel made for 1.2 8 v corsa's in and fill up with man fuel
|
Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
|
just getting some info man. petrol has come down over 12p a litre here so i don't mind paying 5p extra a litre for the good stuff.
[Edited on 15-06-2012 by Ben G]
|
SetH
Member
Registered: 15th Jul 01
User status: Offline
|
How many miles has you car done Ben?
|
Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
|
71k
|
SetH
Member
Registered: 15th Jul 01
User status: Offline
|
Thats nothing, a prime candidate for supercharging.
320 bhp & 300 bhp/ft for £4.5 k do it
|
taylorboosh
Member
Registered: 3rd Apr 07
User status: Offline
|
lol or sell and spend less than £4k and get a e46 m3 with 340bhp standard?
also setH, so i should be using posh fuel?
on it like a car bonnet tbh
|
Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
|
Won't make any difference performance wise but meant to be better quality fuel, better chemicals etc probably less silicon
|
Aleex
Member
Registered: 21st Jul 09
Location: Plymouth
User status: Offline
|
using 99 ron (high octane) is noticeable in my EK9 over "normal" fuel
|
Sly_SRi
Premium Member
Registered: 9th Apr 04
Location: Reading, UK Drives: Corsa C
User status: Offline
|
tbh I've not noticed the difference in mine? Seem to perform the same and both seem to cause detonation at certain revs under load.
Corsa C Z20Let
Black Sleeper Turbo Project
|
Edges 58
Member
Registered: 30th Mar 10
Location: Nottingham
User status: Offline
|
I feel the 330 runs better on 99.. smoother and feels like it has a little more pulling power
|
Sly_SRi
Premium Member
Registered: 9th Apr 04
Location: Reading, UK Drives: Corsa C
User status: Offline
|
Although thinking about it....I've never actually brimmed a tank with high octane fuel, only like 25 litres at a time, so I guess it's not a proper test.
Corsa C Z20Let
Black Sleeper Turbo Project
|
corsadonk
Premium Member
Registered: 4th Jul 09
Location: Marlborough, Wiltshire
User status: Offline
|
Evo mag, tested the last M5 on super and it made about 2hp difference. The reckon the BMW's do a good job of adjusting the fuel so no point.
On the other cars it made a big difference.
|
Tiger
Member
Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
User status: Offline
|
I run 97RON in my BMW 330 and I get 40 miles more on £40 quids worth of fuel over standard 95RON and for my car that's a gallon and a half of fuel so £6-7 of fuel....
|
Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
|
Thats not bad. Certainly makes up for the extra money it costs.
Think i'll run it on the better stuff for a month and see if I notice any difference. (about 3 full tanks).
|
Tiger
Member
Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
User status: Offline
|
My findings were fairly accurate in terms of I tested over my drive to work (30 miles a day), same route, same weather conditions, same driving style, I tried 3 fuels, supermarket (proved worst by far for fuel economy, worked out more expensive than using 97ron) 95 was my control, then 97RON was where I consistently found far more MPG.
|