GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: KingDom. on 15 February 2009, 15:12
-
Has anyone got the same problem with Tesco's fuel as me? I have always filled the tank with good old Shell premium unleaded but when ever im being cheap and use the Tesco's stuff the mk2 always runs like its holding back. Now I know the premium Tesco's fuel aint that good but even with the Super Unleaded 99 octane petrol my golf runs like a bag of poop.
-
16v or 8v ??
-
8v
-
they try and pink on 95 octane, knock sensor picks it up and ecu pulls teh ignition back. result less gee gees
-
i ONLY use super unleaded from BP
i get better fuel economy and feels like i have more power but i have no proof
-
Yes deffo the tesco stuff gives me less mpg, super unleaded ftw!
-
i cant say ive ever noticed the difference tbh! but i do like a bit of super unleaded :D
-
its all mine ever ran on i cant go back to the cheap stuff i feel the difference responce aint as good
-
I only use shell optimax in my G60 ... I once put a tenner of tesco 99ron in it and it nearly died on me on the motorway, was kangarooing most of the way to the nearest shell garage where I filled up and problem solved :) Bit strange really, but supermarket fuel is sh!tte!
-
Optimax every time. Remember when it was £1.30 a litre not so long ago. Seems bonkers really, good job it's come down some.
-
My 8v was quite happy to run on supermarket fuel.
Not tried high octane in my 16v. It only had fumes in it when I picked it up, and the nearest filling station only had 95 octane. I put £20 in and am still using that.
Optimax every time. Remember when it was £1.30 a litre not so long ago. Seems bonkers really, good job it's come down some.
We were paying £1.36 for diesel a while back. It cost me £84 to fill my Passat once :shocked: :shocked:
-
Recently my 8v has been going hot and cold, sometimes it's rapid and pulls well, smooth through the gears and gives me confidence, yet somtimes it holds back, put my foot down and im rocking back and forward like I'm on a moped trying to get it to actully move lol, it seems to run better on a full tank, but i was wondering whether this was possibly the problem?
-
Over the years, the bottom of your fuel tank collects all sorts of crap, and if you let the fuel level go down too low, the pumps suck up all the crap and tries to feed it to your engine. But the filters get in the way and restrict the flow of fuel, so you end up with fuel starvation. Try changing the fuel filters.
-
this kinda crap makes me laugh. as if anyone can genuinely say they feel/ notice the differance between supermarket or Bp/shell equivalent.
like DPB said change ya filters and save some cash buying the cheaper gear it wont do your car any harm.
-
this kinda crap makes me laugh. as if anyone can genuinely say they feel/ notice the differance between supermarket or Bp/shell equivalent.
like DPB said change ya filters and save some cash buying the cheaper gear it wont do your car any harm.
:smiley: :smiley: :smiley:
This subject has been covered so many times................................
-
denends on your engine and how well calobrated arse dyno is.
very easy tell whats in the tank if have had a knock sensor fail tho
-
Bit strange really, but supermarket fuel is sh!tte!
Fuel is the same well it is in the south west. I work for one company. BP, Esso and Tesco in the south west all come from the same refinary and streight into the tankers.
Ok ASDA do get it from some sh!te places.
-
The cars recently had a full service, fuel filter, oil, oil filter, plugs, leads, dizzy cap and rotor arm. Are there any kind of fuel filters in the tank, or attached to the pump in any way? Just as a precaution, would it cause problems if the fuel filter was the wrong way round, and in which direction should the flow indicator be, towards the front or back. Thanks
-
this kinda crap makes me laugh. as if anyone can genuinely say they feel/ notice the differance between supermarket or Bp/shell equivalent.
i can feel the differance and see the difference in MPG
thats for sure
-
this kinda crap makes me laugh. as if anyone can genuinely say they feel/ notice the differance between supermarket or Bp/shell equivalent.
i can feel the differance and see the difference in MPG
thats for sure
+1
i get better mpg and my car idles alot smoother on it too
Dan
-
you keep telling yourself that then :smug:
-
you keep telling yourself that then :smug:
i sure will :wink:
Dan
-
you keep telling yourself that then :smug:
so what kind of crap fuel do you use ???
tesco , morrisons or asda ????
sorry but my Mrs does feul calculations every fill up and my car has gone from 1ltr in 9kms
to now i get 1ltr to 11 kms !!!!
stick that in your pipe :tongue: :tongue:
and the engine IS smoother
-
you keep telling yourself that then :smug:
so what kind of crap fuel do you use ???
tesco , morrisons or asda ????
sorry but my Mrs does feul calculations every fill up and my car has gone from 1ltr in 9kms
to now i get 1ltr to 11 kms !!!!
stick that in your pipe :tongue: :tongue:
and the engine IS smoother
dont lie your mrs doesnt do fuel calculations.....you do :tongue: :tongue:
-
I wouldn't run anything other than the higher octane fuels
-
Makes sod all difference that I can see. MPGs will always change unless you drive the exact same route in the exact same traffic/weather conditions with the exact same amount of air in your tyres etc etc etc, which lets face it, never going to happen so you can never test it properly.
Shouldn't 8vs be run on 95? I seem to remember seeing a sticker on the fuel flap but can't quite remember what it says.
I use shell normal fuel, as my OH has an Egg credit card that gives us cashback at shell stations, and the shell is competatively priced to start with.
-
GTI's should be on 98 ron.
These fuel threads are getting really boring. There must be hundreds of them now in the Golfgti archives.
-
I wouldn't run anything other than the higher octane fuels
dont you know theres a credit crunch on!!!!!!!!!!
-
I've completed 200 miles and used 1/2 a tank. Very happy!!
8v GTI on K jet!!!
-
99, 95, octane :huh:. No wonder, the euro GTI stuff. out of the box, ya'lls run circles around the American :embarassed: versions. Along w/ that 99 octane, c'mon guys ship some over here. the best we get out of the pump is 93, the only way to get the good stuff 101 or better. Is from a auto performance shop @ 4.50 a gal. at least.:embarassed: :sad:
-
I wouldn't run anything other than the higher octane fuels
dont you know theres a credit crunch on!!!!!!!!!!
It only works out as an extra couple of quid per tank :afro:
Which you'll gain back in increased MPG anyway :)
-
^^bullsh!t! its all in your head!
-
^^bullsh!t! its all in your head!
Nice one...
Even if it didn't make any difference, the engine was recommended to run high octane fuel.
Also it reduces chances of pinking, prolonging engine life and makes the engine run smoother
All for an extra £3-4 quid?
Sounds good to me :)
-
^^bullsh!t! its all in your head!
Nice one...
Even if it didn't make any difference, the engine was recommended to run high octane fuel.
Also it reduces chances of pinking, prolonging engine life and makes the engine run smoother
All for an extra £3-4 quid?
Sounds good to me :)
+1.
Not bullsh!t at all. High compression engines need a high octane fuel to prevent damage. If only part of the mixture burned whilst the other part sponteously combusted, (exploded) you would not be reaping the benefits of the total amount of heat enery available for the given weight of fuel. Thus your fuel consumption would increase and your engine will wear quicker.
But I keep explaining all this. It's now like flogging a dead horse!!
-
It even states in the filler cap to use Premium!
Thats what I use, I do see a big drop in performance with 95ron, so it's 98/99 all the way now.
And yeah, High compression engines NEED high octane fuel, my best mate owns a Integra Type R and would rather let it run dry than put 95 in it lol
-
^^bullsh!t! its all in your head!
go away and gain an understanding of how enignes really work and what goes on in them.
most of the time enignes will tolerate lower octane than they are meant to run on, tho you try driveing hard on a hot day in the middel of summer. pop
-
^^bullsh!t! its all in your head!
i dont care
i thrash the living poo out of my car most days :wink: and the last thing i want to worry about is the engine running lean and melting a piston due to sh1t fuel
BUT if Mr xcore wants to believe there is no differance !!!!! ok mate no bother , when your car has problems come ask us what we think :grin: :grin: :grin: :grin:
-
If you don't think it makes a difference, go and find a Honda step-thru and try different fuel in that. If i filled up at Asda it was painfully slow and didn't get me as far, if i filled up at BP with their super unleaded however you could instantly feel the difference.
Oh how i miss the days of £3 a week in petrol :cry:
-
Oh how i miss the days of £3 a week in petrol :cry:
LOL i want my ZXR750 on the road
10 euros a week not 20 to 25 in the car :sad: :sad:
but the rain and sh1t at the moment would kill it (and me)
-
been driveing the old caddy today.
that is free motoring. runs on red diesel and it's allowed to can only go 3 or 5 mile radius on road tho
-
^^bullsh!t! its all in your head!
Twonk.
-
Running a 16V on V-power and Tesco 99... no problems but i prefer to use V-power as you don't know what additives you got in the Tesco fuel. :huh:
I only use tesco as my car has dun 160k so if the engine gets fooked then i'll just have to install that BAM engine to replace it!!! :grin:
-
I run all my cars on Tesco 99 - one of the best fuels on the market and cheaper.
To be honest none of the Golf 8v or 16v will run any faster unless the ECU can dynamically advance the timing of the fuel/ignition map(still learning about the golf ecu so it might do) .
Advance you static timing a few degrees and stick the higher octane fuel and and driverblity should go up a bit.
On my MR2 Turbo if you boost it on 95 octane the car reverts to "Safe map" and pulls timing to keep pinking/det under control and the car looses a wallop of power and torque. Run it on the good stuff and the map reverts to "normal" and advances the timing back up and I regaine about 40HP and 60lbs of torque. (tested this on a RR about 4 years ago)
-
99, 95, octane :huh:. No wonder, the euro GTI stuff. out of the box, ya'lls run circles around the American :embarassed: versions. Along w/ that 99 octane, c'mon guys ship some over here. the best we get out of the pump is 93, the only way to get the good stuff 101 or better. Is from a auto performance shop @ 4.50 a gal. at least.:embarassed: :sad:
93 MON is the same as UK/Europe 97RON
91MON is 95 RON
87MON (aka pisswater) is 91RON
So you will find you get pretty much the same as us.
-
^^bullsh!t! its all in your head!
go away and gain an understanding of how enignes really work and what goes on in them.
most of the time enignes will tolerate lower octane than they are meant to run on, tho you try driveing hard on a hot day in the middel of summer. pop
bit hard to do on a low power NA GOLF GTi, if your talking Turbo/super charged then yes , but most ECUs would back timing off and dump more fuel in to safe the motor.
-
Advance you static timing a few degrees and stick the higher octane fuel and and driverblity should go up a bit.
If you advance your timing too much, then the peak pressure within the cylinder will occur too early and act as a piston brake rather than a motive force, and you will lose power.
-
Advance you static timing a few degrees and stick the higher octane fuel and and driverblity should go up a bit.
If you advance your timing too much, then the peak pressure within the cylinder will occur too early and act as a piston brake rather than a motive force, and you will lose power.
2 degrees of static should not cause this
-
bit hard to do on a low power NA GOLF GTi, if your talking Turbo/super charged then yes , but most ECUs would back timing off and dump more fuel in to safe the motor.
tell that to k jet. or a 20vt running qpeng nether systems have knock sensors.
just seen evidence of a nother ABF die from dettonation thanks to running on kjet you have to rember it dosent happen as quickly as with boos but still happens.
run an enigne desinged for 97 on 95 and you are just giveing it all the more chance of going pop.
-
Hmm been running mine on Morrisons normal stuff and it seems to be ok. Might have to fill it up with premium and run a test eh?? Never really figured it would make much difference and im a tight git so ive always bought the cheapo stuff!!
-
A quick update on my above post, I decided to try the expensive BP stuff and to be honest I couldnt tell ANY difference to the standard Morrisons goop Ive been using for ages - however I put £15 worth of Tesco Super Unleaded in tonight (first time ive tried it) after it was nearly on empty and there is a HUGE difference, feels like a different car - much smoother and more responsive!
-
A quick update on my above post, I decided to try the expensive BP stuff and to be honest I couldnt tell ANY difference to the standard Morrisons goop Ive been using for ages - however I put £15 worth of Tesco Super Unleaded in tonight (first time ive tried it) after it was nearly on empty and there is a HUGE difference, feels like a different car - much smoother and more responsive!
I was always told that you don't usually see any benefit until your second tank, as the first tank mixes with the leftovers from the previous tank. Obviously running it as dry as you can before fill-up can help.
Re. the whole debate of 95v98, I think a telling sign is the Golf owner manual. Pg. 75 lists the MINIMUM RON fuel to be used for each engine. Most carb engines are listed as 91. Most fuel injection engines (including the GTI 16v) are listed as 95 (though it recommends 98 'for prolonged high speed driving at ambient temperatures). However, the 8v GTI is listed as 98, with the proviso that 95 can be used, but it will lead 'to a slight loss of power'.
-
ok didn't mean to poat in this thread wtf???
ello btw new here!
-
ok didn't mean to poat in this thread wtf???
ello btw new here!
Very random but funny too!
With my old 16v it used to pink like mad with Tesco, cheap fuels. SUper Unleaded Optimax was always a good fix for it.
-
Shell all the way for me too.
Oddly, I filled up with BP Ultimate the other day as there wasn't a Shell around.
It's 'only' 97 ron so with half a tank of that and half a tank of Shell I would have been running 97.5 ron compared to usually a full tank of 98 ron fuel and got a better fuel economy :undecided:
-
It makes sod all difference and this has been covered loads of times.
-
It makes sod all difference and this has been covered loads of times.
I didn't want to sub to this thread but Kittie - it makes a massive difference. You're on here often enough, I would have thought you'd know the impact of using 95 fuel on a 97 tuned engine.
Crappy marketing aside, it probably won't give you better fuel economy or clean the engine the way they describe. But what it will prevent is detonation and your pistons looking like this ...
(http://www.sdsefi.com/piston17.jpg)
Every time this topic is covered, its always stated that you should be using the right fuel in the right engine, maybe you should re-read ;)
http://en.wikipedia.org/wiki/Octane_rating
-
if you manage to do that to NA Engine somthing is very very wrong with your EFI map tune/ timing way out or your compression is way to high. the chance of doing on that on stock engine running 95 rod is remote
on a high boost turbo car I have seen that many times with a bad tune, but never on a low power Golf 1.8, if you run a digi golf, it will have a knock sensor and unless it has any knock (frequency worked out from bore and stroke of the engine in KHZ) you wont even notice a drop in performance.
My MR2 Turbo is designed to run on 100Ron Jap fuel and with my Blitz ECU its chucks on even more advance and leans out the mix for more power and I chuck in super only, and tesco 99 is the best I have found and have checked this with a timing gun on the rollers - runs way more advance with the Tesco stuff and power than normal Super UL.
The old Mechanical Fuel Injection Golfs Early 8v and 16vs will be more prone to using the correct fuel as they are dumb fuel systems.
-
Well I dont know if its just coincidence but now my car is stalling every time I come to a junction - revs drop below 500 then it cuts out. Well annoying!!!
It never used to do this on the old fuel ....
-
It makes sod all difference and this has been covered loads of times.
Yes and no. No it does not make a difference on low powered and low compression ratio engines, but yes it does at the other end of the scale.
And yes, this topic has been covered many, many, many times before, but it seems that people are reluctant to be educated and rely on pub talk rather than the trained and taught facts that only one or two of us, so it seems, have been privilaged with. These threads are now extremely boring!
-
but pub facts are real !!!!
my pi55ed mate told me !!!!!
:wink: :wink: :wink:
-
Optimax all the way! ive found its the only fuel my valver runs properly on and i think its cheaper than bp super (it is were i live anyway)
-
It makes sod all difference and this has been covered loads of times.
I didn't want to sub to this thread but Kittie - it makes a massive difference. You're on here often enough, I would have thought you'd know the impact of using 95 fuel on a 97 tuned engine.
Crappy marketing aside, it probably won't give you better fuel economy or clean the engine the way they describe. But what it will prevent is detonation and your pistons looking like this ...
(http://www.sdsefi.com/piston17.jpg)
Every time this topic is covered, its always stated that you should be using the right fuel in the right engine, maybe you should re-read ;)
http://en.wikipedia.org/wiki/Octane_rating
Well in the last 60,000 miles/8 years I know for a fact that my golf has had about 10 or 20 quid of Optimax about 3 times. Can't comment on before that as it was in a different family then. It runs fine, got 170odd K on it with no problems, and when I have used it the only difference I've noticed is a lighter purse!
Weather, now that makes a difference :laugh:
-
... the only difference I've noticed is a lighter purse!
At the end of the day, your car was built and tuned to run on 97. It shouldn't really be up for debate :huh:
-
loving this thread, heres proof enough
My cars been pinking (MK2 PB ) ive been running esso 95 in it, read this, put V-power in and wouldnt ya know, pinking gone, car feels smooth and like it wants to go for it! where as before it felt loke if i put my foot down it was gonna go bang, it didnt want to go at all!
gonna run another tank through and then head to my nearest VW specialist for some fine tuning!
-
I have MK2 Digi - have been running 95 for the last 8 months....put in BP 97 super...and the engine revs smoother and quieter?..havent really noticed the proformance...but its the first tank of 97...
I was expecting better fuel economy...i would say its been the same,
Went for a run to Birm over the weekend, normally costs me £35 return journey averaging 85mph....but due to traffic...and sh!t weather...averaged only 70mph.....Birm and back to london for £30!...
Unfortunity i spun out on a roundabout saturday morning in birm....was only doing 25mph...now i need a front drives side wing, head light and grill...
Anyone got a silver drivers wing email me on parv@jkps.co.uk....or make me a offer...Silver J reg 5 door 8 month mot and 3 months tax...98K full history, BBS Ra mint interior, no rips..every past mot..£600 ...cheers
-
i have not read all the way through this thread. but under my pb's petrol filler cap it reads min 98ron. is this what the germans used to use back in the late 80's anyway?
-
I always ran my MKII Digis on bogo unleaded with no problems and probably covered 100,000 miles between the 3 of them.
nick
-
Can't comment on my mk2 as it isn't on the road yet, but i use shell and bp 97 in my Vitara and Ka also in 650 bandit and it DOES make a noticeable difference, especially in the Vit, it pulls a high top gear at lower rpm and gets 3/4 extra mpg. So.. when gti is on the road it's getting the good stuff :wink:
-
loving this thread, heres proof enough
My cars been pinking (MK2 PB ) ive been running esso 95 in it, read this, put V-power in and wouldnt ya know, pinking gone, car feels smooth and like it wants to go for it! where as before it felt loke if i put my foot down it was gonna go bang, it didnt want to go at all!
gonna run another tank through and then head to my nearest VW specialist for some fine tuning!
you need a new knock sensor.
all the vw enignes should be abel to run on 95 octane safely but some run safer than others, 8v digifants knock there timeing back via the knock sensor . k j et 2.0 16v's and 95 ron is a big fat massive no tho
-
I wish someone would lock this thread already :(
-
i have not read all the way through this thread. but under my pb's petrol filler cap it reads min 98ron. is this what the germans used to use back in the late 80's anyway?
I believe 98 RON is four star.
-
110 octane racing fuel from Santa Pod tbh.
-
110 octane racing fuel from Santa Pod tbh.
Wouldnt really make a diff on a mk2 gti :rolleyes: :tongue:
-
110 octane racing fuel from Santa Pod tbh.
Wouldnt really make a diff on a mk2 gti :rolleyes: :tongue:
Does if it's tuned properly.
-
110 octane racing fuel from Santa Pod tbh.
Wouldnt really make a diff on a mk2 gti :rolleyes: :tongue:
Does if it's tuned properly.
No it won't.
-
needs to be set up on 110 RON
PLEASE LOCK THIS THREAD !!!!!!!
-
110 ron will actualy reduce your output, needs engine built to exploit it
-
we tried to run our sidecar on jet fuel
got kicked out of the race meeting for cheeting
smelled nice when my head was near the exhaust pipe on the left handers :grin: :grin:
nice grey exhaust pipe tip too :)
-
model airoplane fuel is the one we got caught hillclimbing with.
mk1 NA 2.0 16v makeing 400 ish bhp on home brew nitro mix (90 % nitromethane 6 % methanol 4 % castrol R ) that thing turned heads to meany heads. scrutineers got very intrested in it quite quickly then said stopit thats not allowed. was silly fast up the hill till then :evil: engines din't last very long tho and it made some very intresting smells
-
110 ron will actualy reduce your output, needs engine built to exploit it
Thank you. Someone with some knowledge, and not bar room waffle!
This thread is so long and boring and it need to be locked. In future, use the search as it has been covered many, many, many many times before with the same results and same arguments with nothing gained.
If you are happy to run on low octane, do it. If you are happy to run on high octane, do it. If you want to listen to bar room B.S, please, carry on. But please, let this be the last thread on this ridiculous topic.
-
95 RON is OK in a standard 8v digi as the knock sensor (if working) can retard the timing to make it safe but you will not achieve the rated power, if you want to be sure of getting the full 112bhp (ish) then you must use 98 RON.
You should not use 95 in a k-jet if you drive it hard at the standard ignition timing. If you want to use 95 all the time you should retard the timing by 3 to 5 degrees which will reduce the power a little but will help to prevent 'pre-ignition'.........to a point.........
If you have an old worn engine with poor compression you'll probably get away with 95 RON without 'pre-ignition', however, if you have an old engine in good condition with plenty of carbon deposit, this can raise the compression ratio along with producing 'hotspots' in the cylinder which would raise the risk of 'p-i'. In this situation using a RON higher than 98 could be safer for the engine.
Pre-ignition normally starts at a point in the rev range where the maximum torque occurs, around 3000-3500rpm in an 8v and 4200-4700 in a 16v. it does not normally occur at very low or very high rpm.
If your engine is running too hot it will also increase the risk of 'p-i'. If you're lucky you will hear 'p-i' as a 'jingling' sound and you can ease off the throttle but most people just can't tell, that's why knock sensors were invented to listen for us.
Surely this must be locked off soon.................zzzzzzzzzzzzzz