unleaded or v-power
12 July 2011, 11:58 PM
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unleaded or v-power
hi there,
just a quick question for you guys i bought my new scoob last week and the guy told me he run it on unleaded so filled it up with it for the journey home,
but tonight i filled it up with v-power after running the unleaded dry, as i read scoobys should be run on v-power or the like,
but now it seems to be missing on acceleration if i give it high revs to about 4000rpm.
will this clear? or do i need to use unleaded in it, as it run ok until i filled up tonight then coming back home it started playing up, just a bit concerned as i thought scoob's are supposed to be run on the good stuff and can't understand why its now playing up since putting in the v-power.
i have a standard uk turbo 2000 except an ss scorpion 3" full decat system from the turbo.
thanks in advance for the replies.
just a quick question for you guys i bought my new scoob last week and the guy told me he run it on unleaded so filled it up with it for the journey home,
but tonight i filled it up with v-power after running the unleaded dry, as i read scoobys should be run on v-power or the like,
but now it seems to be missing on acceleration if i give it high revs to about 4000rpm.
will this clear? or do i need to use unleaded in it, as it run ok until i filled up tonight then coming back home it started playing up, just a bit concerned as i thought scoob's are supposed to be run on the good stuff and can't understand why its now playing up since putting in the v-power.
i have a standard uk turbo 2000 except an ss scorpion 3" full decat system from the turbo.
thanks in advance for the replies.
13 July 2011, 12:28 AM
#3
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UK cars legally have to be able to run on 95ron so if your's is uk then you are ok.
......however, in my experience, the increased mpg of super/v-power makes it cost effective
......however, in my experience, the increased mpg of super/v-power makes it cost effective
13 July 2011, 12:34 AM
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i'm no expert but maybe when he had it mapped (which i assume he did when having the 3" fitted) it was done on normal unleaded, i know that if you have it mapped with v-power then you shouldnt run it on anything else, i would assume this works the other way round. of course could be completely wrong lol
13 July 2011, 12:38 AM
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i'm no expert but maybe when he had it mapped (which i assume he did when having the 3" fitted) it was done on normal unleaded, i know that if you have it mapped with v-power then you shouldnt run it on anything else, i would assume this works the other way round. of course could be completely wrong lol
does it have to have a remap with a new exhaust then? and is this what the problem could be you think?
i think the only test will be to fill up with unleaded again when the v-power has all gone and see if it stops and if so then i guess your right and its been mapped on unleaded.
13 July 2011, 01:10 AM
#7
What year is your car as some UK model years are hard to map without a replacement ecu / piggyback (97 and 98 from the top of my head can't have the stock ecu mapped).
That might be able to rule out the possibility of a remap.
That might be able to rule out the possibility of a remap.
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13 July 2011, 01:14 AM
#8
I only use Monmentom or V-Power , if I am ever running low and can't get either you should put in a 97RON fuel. With the 95 the owners book states you will be running on reduced performance.
I'd run a couple of tanks worth of the good stuff and see how the car feels then.
I'd run a couple of tanks worth of the good stuff and see how the car feels then.
13 July 2011, 12:50 PM
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I only use Monmentom or V-Power , if I am ever running low and can't get either you should put in a 97RON fuel. With the 95 the owners book states you will be running on reduced performance.
I'd run a couple of tanks worth of the good stuff and see how the car feels then.
I'd run a couple of tanks worth of the good stuff and see how the car feels then.
thanks for advise as above will give it a couple of tanks of v-power to see if the knock sensor clears the problem, and doa!!! didn't think about asking the previous owner but just been looking through the paperwork for the car and there is no receipt for any ecu/remap services all i have is a top end rebuild with upgraded gaskets for the engine and a couple for of ancillary receipts.
13 July 2011, 12:51 PM
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13 July 2011, 11:21 PM
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i filled up about 5 miles after the light come on would this of caused muck to get into the fuel system?
yes they run better on super unleaded, momentum, shell Vpower, but on a UK car ordinary unleaded (95 RON)will do it no harm
will this clear?
or do i need to use unleaded in it, as it run ok until i filled up tonight then coming back home it started playing up, just a bit concerned as i thought scoob's are supposed to be run on the good stuff and can't understand why its now playing up since putting in the v-power.
Last edited by bigsinky; 13 July 2011 at 11:27 PM.
13 July 2011, 11:32 PM
#15
If in doubt, and regardless of what people here say; Consult the back cover of your owner's manual. It will say the minimum RON fuel allowed for your car. Remember, not all Subarus are the same with regard to fuel requirements.
Most UK Turbo 2000s can run on 95 Ron. My old Turbo 2000 has run on it for its entire life...and still does under its present owner.
The exception to whatever the owner's manual says is if a PPP has been fitted (prodrive performance pack), or if the car has had ecu/fueling/boost modifications. In which case you'll need 97RON at the very minimum.
A misfire on higher RON fuel maybe indicative of a duff spark plug or plug leads (or coil pack if its an old coil-on-plug model), as higher RON fuel is harder to ignite. So any flaws with the ignition system becomes more prominent when a higher RON fuel is used. This knowledge comes from experience with working on LGP equipped cars which due to the very high RON will throw a hissy fit should there be the slightest problem with the ignition system.
Most UK Turbo 2000s can run on 95 Ron. My old Turbo 2000 has run on it for its entire life...and still does under its present owner.
The exception to whatever the owner's manual says is if a PPP has been fitted (prodrive performance pack), or if the car has had ecu/fueling/boost modifications. In which case you'll need 97RON at the very minimum.
A misfire on higher RON fuel maybe indicative of a duff spark plug or plug leads (or coil pack if its an old coil-on-plug model), as higher RON fuel is harder to ignite. So any flaws with the ignition system becomes more prominent when a higher RON fuel is used. This knowledge comes from experience with working on LGP equipped cars which due to the very high RON will throw a hissy fit should there be the slightest problem with the ignition system.
Last edited by ALi-B; 13 July 2011 at 11:37 PM.
13 July 2011, 11:34 PM
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you ran the tank completely dry i.e. ran out of petrol???
ahh ok from another post. not usually, but that assuming your petrol gauge is working ok. i wouldn't let that happen again.
yes they run better on super unleaded, momentum, shell Vpower, but on a UK car ordinary unleaded (95 RON)will do it no harm
I am not surprised. if you run a 12 year old tank very low you are going to get a lot of crap in the bottom of the tank. time to have a look at the fuel filter and get those injectors checked.
It may do, it may not. if not then a trip to a subaru mechanic should sort it out.
you seem confused by this unleaded thing. All the fuel is unleaded. its the RON rating that is different. Normal unleaded is 95, super unleaded is 97, Shell V-Power is 98, tesco Momentum is 99. the higher the RON rating the better protection against detonation (knock) in your engine. i suspect you have some debris in your fuel lines caused by running your tank dry. take the advice of others on here. treat a 1/4 tank as empty and always use the highest RON you can find.
ahh ok from another post. not usually, but that assuming your petrol gauge is working ok. i wouldn't let that happen again.
yes they run better on super unleaded, momentum, shell Vpower, but on a UK car ordinary unleaded (95 RON)will do it no harm
I am not surprised. if you run a 12 year old tank very low you are going to get a lot of crap in the bottom of the tank. time to have a look at the fuel filter and get those injectors checked.
It may do, it may not. if not then a trip to a subaru mechanic should sort it out.
you seem confused by this unleaded thing. All the fuel is unleaded. its the RON rating that is different. Normal unleaded is 95, super unleaded is 97, Shell V-Power is 98, tesco Momentum is 99. the higher the RON rating the better protection against detonation (knock) in your engine. i suspect you have some debris in your fuel lines caused by running your tank dry. take the advice of others on here. treat a 1/4 tank as empty and always use the highest RON you can find.
thanks for reply
i didn't run out of petrol just ran it low as not to mix to much unleaded with vpower, yea the shell garage is like the old style pumps, green unleaded and the red 4* just got that in mind
hope it clears as it just had full service 3 weeks before i got it, but if it has to have new fuel filter then so be it but at least i know where to start now thanks to you
thanks again bigsinky for advise.
13 July 2011, 11:44 PM
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If in doubt, and regardless of what people here say; Consult the back cover of your owner's manual. It will say the minimum RON fuel allowed for your car. Remember, not all Subarus are the same with regard to fuel requirements.
Most UK Turbo 2000s can run on 95 Ron. My old Turbo 2000 has run on it for its entire life...and still does under its present owner.
The exception to whatever the owner's manual says is if a PPP has been fitted (prodrive performance pack), or if the car has had ecu/fueling/boost modifications. In which case you'll need 97RON at the very minimum.
A misfire on higher RON fuel maybe indicative of a duff spark plug or plug leads (or coil pack if its an old coil-on-plug model), as higher RON fuel is harder to ignite. So any flaws with the ignition system becomes more prominent when a higher RON fuel is used. This knowledge comes from experience with working on LGP equipped cars which due to the very high RON will throw a hissy fit should there be the slightest problem with the ignition system.
Most UK Turbo 2000s can run on 95 Ron. My old Turbo 2000 has run on it for its entire life...and still does under its present owner.
The exception to whatever the owner's manual says is if a PPP has been fitted (prodrive performance pack), or if the car has had ecu/fueling/boost modifications. In which case you'll need 97RON at the very minimum.
A misfire on higher RON fuel maybe indicative of a duff spark plug or plug leads (or coil pack if its an old coil-on-plug model), as higher RON fuel is harder to ignite. So any flaws with the ignition system becomes more prominent when a higher RON fuel is used. This knowledge comes from experience with working on LGP equipped cars which due to the very high RON will throw a hissy fit should there be the slightest problem with the ignition system.
it had a full service 4 weeks ago so i think this removes the spark plugs as a possible cause but as you say might be a coil pack i have just posted some pics of her in members area and there is an engine bay pic if you can see if its and old style coil pack.
https://www.scoobynet.com/members-ga...sic-wagon.html
im going to give it another tank of vpower to see if it clears but if not then will have to be at the mercy of the garage
thanks ali for advise
15 July 2011, 01:10 PM
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If in doubt, and regardless of what people here say; Consult the back cover of your owner's manual. It will say the minimum RON fuel allowed for your car. Remember, not all Subarus are the same with regard to fuel requirements.
Most UK Turbo 2000s can run on 95 Ron. My old Turbo 2000 has run on it for its entire life...and still does under its present owner.
The exception to whatever the owner's manual says is if a PPP has been fitted (prodrive performance pack), or if the car has had ecu/fueling/boost modifications. In which case you'll need 97RON at the very minimum.
A misfire on higher RON fuel maybe indicative of a duff spark plug or plug leads (or coil pack if its an old coil-on-plug model), as higher RON fuel is harder to ignite. So any flaws with the ignition system becomes more prominent when a higher RON fuel is used. This knowledge comes from experience with working on LGP equipped cars which due to the very high RON will throw a hissy fit should there be the slightest problem with the ignition system.
Most UK Turbo 2000s can run on 95 Ron. My old Turbo 2000 has run on it for its entire life...and still does under its present owner.
The exception to whatever the owner's manual says is if a PPP has been fitted (prodrive performance pack), or if the car has had ecu/fueling/boost modifications. In which case you'll need 97RON at the very minimum.
A misfire on higher RON fuel maybe indicative of a duff spark plug or plug leads (or coil pack if its an old coil-on-plug model), as higher RON fuel is harder to ignite. So any flaws with the ignition system becomes more prominent when a higher RON fuel is used. This knowledge comes from experience with working on LGP equipped cars which due to the very high RON will throw a hissy fit should there be the slightest problem with the ignition system.
turned out to be as you said, went to see my scooby specialist and he found a faulty ht lead replaced it and now no misfire
top man cheers fella
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