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1.2 TSI super unleaded???

Catzeye83

Active Member
Jun 21, 2021
49
4
41
Newcastle upon Tyne
Hi everyone much appreciated for any help I receive on this, I've bought my 1st seat, it's a a 1.2 TSI , its my 1st petrol car in about 12 year, am I right in saying it's best to run any Tsi on super unleaded? I've read and herd that when a TSI is ran on normal unleaded that can run a bit crappy, thanks again for any help
 

lylewatson2001

Active Member
Jun 25, 2021
9
5
I seen a fuel test on an Ibiza 1.2 TSI 110 and the diffrence between the Tesco Petrol being the lowest and Shell And BP premium petrol was about 5bhp. The diffrence between 95 and 97 Ron at BP was 0.75bhp
 
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RUM4MO

Active Member
Jun 4, 2008
7,964
1,058
South Scotland
I aim to refuel once or twice a year, when running a car for 8,000 miles in a year, using UL+ and planning that refuel with UL+ when going on long journeys.
The reason for that being to attempt to keep as much as the engine internals as clean as possible - okay being a direct injection petrol engine, the inlet tract area will not benefit from this, but I'm doing as much as I can to keep the engine internals as clean as possible.
Note here, my main reason for using UL+ is that it has a far more beneficial additives package than the basic minimum added to the UL petrol, the extra couple of Octane points is not going to make it rocket fuel.
 
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Catzeye83

Active Member
Jun 21, 2021
49
4
41
Newcastle upon Tyne
I aim to refuel once or twice a year, when running a car for 8,000 miles in a year, using UL+ and planning that refuel with UL+ when going on long journeys.
The reason for that being to attempt to keep as much as the engine internals as clean as possible - okay being a direct injection petrol engine, the inlet tract area will not benefit from this, but I'm doing as much as I can to keep the engine internals as clean as possible.
Note here, my main reason for using UL+ is that it has a far more beneficial additives package than the basic minimum added to the UL petrol, the extra couple of Octane points is not going to make it rocket fuel.
Cheers for this, sounding like super unleaded going to be best
 

RUM4MO

Active Member
Jun 4, 2008
7,964
1,058
South Scotland
Cheers for this, sounding like super unleaded going to be best
For once in my life I have started to use Costco petrol, and that started soon after I bought my wife that Polo new in 2015, it runs exceedingly well all year round on UL petrol and gets usually 48>54 MPG per tank fill. Using the higher octane fuel is just my way of trying to clean the engine combustion areas cleaner as I said above, so running like that would save you quite a bit of cash while looking after the car regardless of what brand of fuel you choose to use.
Not trying to turn this thread into a fuel branding debate, if you didn't know, the only thing that makes BP BP etc etc is the additive package, the franchised/branded filling stations outsource the fuel management to a 3rd party and what ends up in the tanks is only as good as how that 3rd party behave.
For example, the fuel management company that supply and support Esso filling stations also supply and support Costco and some others, maybe even Tesco now that they have changed from importing fuel direct from Holland.
 
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lylewatson2001

Active Member
Jun 25, 2021
9
5
For once in my life I have started to use Costco petrol, and that started soon after I bought my wife that Polo new in 2015, it runs exceedingly well all year round on UL petrol and gets usually 48>54 MPG per tank fill. Using the higher octane fuel is just my way of trying to clean the engine combustion areas cleaner as I said above, so running like that would save you quite a bit of cash while looking after the car regardless of what brand of fuel you choose to use.
Not trying to turn this thread into a fuel branding debate, if you didn't know, the only thing that makes BP BP etc etc is the additive package, the franchised/branded filling stations outsource the fuel management to a 3rd party and what ends up in the tanks is only as good as how that 3rd party behave.
For example, the fuel management company that supply and support Esso filling stations also supply and support Costco and some others, maybe even Tesco now that they have changed from importing fuel direct from Holland.
48 to 54? Obviously not having any fun if your being that fuel efficient 🤣🤣
 
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RUM4MO

Active Member
Jun 4, 2008
7,964
1,058
South Scotland
48 to 54? Obviously not having any fun if your being that fuel efficient 🤣🤣
These cars are just run arounds, I have an S4 sleeping in the garage for getting "out and about", Polo 1.2TSI SEL is just for using locally and if you make them and their cousins work hard, the transmission will need replaced every few years I'd think.

Edit:- that 2015 Polo replaced a 2002 Polo 1.4 16V 75PS - buying my wife that 1.4 16V 75PS Polo was an error on my part as it replaced her previous car which was a Ford Fiesta 1.6SI the one with the Zetec engine which had 90PS at least. My thinking was, a 1.4 16V with only 75PS output must be very drivable and economic - these 75PS engines failed on all counts, a total slug of an engine!!
 
Last edited:

lylewatson2001

Active Member
Jun 25, 2021
9
5
My Ibiza got 25mpg doing your avrage motorway speed of somewhere in the 80s or 90s and I'm not talking about working the car overly hard but to get over 50mpg for going around town and stuff you'd need to be driving like you would in a driving test with slow accelerating and coasting as you approach junctions and stuff
 
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Crossthreaded

Active Member
Apr 16, 2019
546
150
Our Ibiza ST (estate) has the 1.0 litre (95hp I think?) 3 cylinder direct injection engine with cam belt - not chain. A number of years ago I tried Shell premium grade fuel in a couple of our cars (there are 6 in the immediate family at any one time) but I have to say I really found no noticeable driving effect. The only comment I would make is that some vehicles may benefit from a high octane fuel because their engine management systems can run more aggressive advanced ignition settings due to the higher RON suppressing pre ignition. I had hoped to see this effect on at least one of the cars, but no. I haven't yet tried it in the Ibiza as I'm very happy with how it goes on supermarket fuel - and anyway it's just convenient to fill up when doing the shopping - but with it's sophisticated wee turboed engine I suspect it's likely to be the best candidate yet to benefit. I'm also slightly concerned about LSPI : https://www.oronite.com/about/news/low-speed-pre-ignition.aspx and, I would imagine, a higher RON fuel would help to suppress this effect. However I'm not worrying greatly about this phenomenon which does not seem to especially affect our engines? Unlike the earlier TSI engines, I've not read lately of any significant piston/ring failure problems on this belt cam generation (EA211)?

I fully appreciate that additive packages can vary somewhat but I think a minimum standard is probably mandatory? On the subject of additives, historically I'm not a believer in supplementary additives (little bottles of "magic" potion/snake oil) and I've not really had any fueling system problems on any of our cars, either diesel or petrol, which I could honestly say were down to the fuel. HOWEVER, in contradiction to my earlier approach, whilst still fueling the cars with supermarket fuel (usually Morrisons), I'm now adding Archoil AR 6900-P MAX to the Ibiza: https://www.powerenhancer.co.uk/arc...d-petrol-synthesis.html#tab-label-description Mainly in the, very small hope, that it will slow the build up of carbon deposits in the immediate locality of the back of the inlet valves and seats. I'm not quite sure how it can achieve this being as how the engine is direct injection, but it claims it can. Even if it doesn't it contains strong cleaning agents which I'm sure will benefit the rest of the engine and it also contains lubricants which I'm hoping may benefit the high (very high) pressure fuel pump and injectors. Just because I've got it I've also started putting it in the Panda (1.2 Dynamic Eco). I've run wee Fiat Pandas as a second car for many years and this Panda is a long term "keeper" (it's quite a rare model being the Dymanic Eco version) which was only made for 2 years and attracts only £30 road tax but our car's original owner specified a number of "extras" like a panoramic glass sun roof etc - We've named her "Becky" (taken from the number plate) and she's my wee "project". It will be interesting to see, if I ever have to do a head gasket, what the cleanliness of the combustion chambers, piston crowns and inlet tracts looks like. Incidentally, whilst the subject of additives is being considered, I've never been at ease with oil additives, either for engine or transmission. I much prefer to buy a really top quality oil which complies fully with the vehicle manufacturer's specifications. It's worth taking into account that the latest research into LSPI seems to be finding that engine oil is playing a big part. several oil manufacturers are now developing oils specifically to address this problem and try to reduce the destructive roll of the oil in this LSPI problem. I read they are also trying to reduce it's roll in the inlet tract clogging problem so I take this as an indicator that if you have one of these downsized but powerful turboed wee engines putting an oil additive in it may be ill advised?

Being an old f**t I drive quite conservatively these days in that I don't often rev an engine above about 4,000 rpm however I'm no "moving traffic jam" either. On the long journeys - Edinburgh to Barnstaple in north Devon and sometimes to Salisbury Wilts, typically 3 journeys per year before the Covid rubbish kicked in, The Ibiza would consistently return almost exactly 60 mpg - slightly under when she was new, now never less than 60 (calculated from "2 click" tank full to "2 click" refill) cruising at 70 with cruise engaged wherever appropriate and "comfortably" keeping up with traffic flow on normal roads. - by which I mean, not particularly trying to drive "economically". I'm less sure what I get running around locally but I regularly see figure in the mid 40s appearing on the dash display when traveling across town and then out into the country south of the city where my two boys live. Interestingly perhaps? my old 1999 Cordoba estate 1,9tdi - the engine before the PD, and a car I absolutely loved and still mourn it's passing - returned virtually identical fuel consumption although it did not have cruise.
 
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Mike the_cupra

Active Member
May 29, 2020
158
81
Hi everyone much appreciated for any help I receive on this, I've bought my 1st seat, it's a a 1.2 TSI , its my 1st petrol car in about 12 year, am I right in saying it's best to run any Tsi on super unleaded? I've read and herd that when a TSI is ran on normal unleaded that can run a bit crappy, thanks again for any help
Short answer; no. I wouldn't waste your money. I'm currently paying 10p/litre premium on momentum (for some reason it's gone up). You won't see any difference on a 1.0, 1.2 or 1.4 TSI. Unless your car explicitly states 98 RON min, like the performance cars do, don't bother.
 

Catzeye83

Active Member
Jun 21, 2021
49
4
41
Newcastle upon Tyne
Our Ibiza ST (estate) has the 1.0 litre (95hp I think?) 3 cylinder direct injection engine with cam belt - not chain. A number of years ago I tried Shell premium grade fuel in a couple of our cars (there are 6 in the immediate family at any one time) but I have to say I really found no noticeable driving effect. The only comment I would make is that some vehicles may benefit from a high octane fuel because their engine management systems can run more aggressive advanced ignition settings due to the higher RON suppressing pre ignition. I had hoped to see this effect on at least one of the cars, but no. I haven't yet tried it in the Ibiza as I'm very happy with how it goes on supermarket fuel - and anyway it's just convenient to fill up when doing the shopping - but with it's sophisticated wee turboed engine I suspect it's likely to be the best candidate yet to benefit. I'm also slightly concerned about LSPI : https://www.oronite.com/about/news/low-speed-pre-ignition.aspx and, I would imagine, a higher RON fuel would help to suppress this effect. However I'm not worrying greatly about this phenomenon which does not seem to especially affect our engines? Unlike the earlier TSI engines, I've not read lately of any significant piston/ring failure problems on this belt cam generation (EA211)?

I fully appreciate that additive packages can vary somewhat but I think a minimum standard is probably mandatory? On the subject of additives, historically I'm not a believer in supplementary additives (little bottles of "magic" potion/snake oil) and I've not really had any fueling system problems on any of our cars, either diesel or petrol, which I could honestly say were down to the fuel. HOWEVER, in contradiction to my earlier approach, whilst still fueling the cars with supermarket fuel (usually Morrisons), I'm now adding Archoil AR 6900-P MAX to the Ibiza: https://www.powerenhancer.co.uk/arc...d-petrol-synthesis.html#tab-label-description Mainly in the, very small hope, that it will slow the build up of carbon deposits in the immediate locality of the back of the inlet valves and seats. I'm not quite sure how it can achieve this being as how the engine is direct injection, but it claims it can. Even if it doesn't it contains strong cleaning agents which I'm sure will benefit the rest of the engine and it also contains lubricants which I'm hoping may benefit the high (very high) pressure fuel pump and injectors. Just because I've got it I've also started putting it in the Panda (1.2 Dynamic Eco). I've run wee Fiat Pandas as a second car for many years and this Panda is a long term "keeper" (it's quite a rare model being the Dymanic Eco version) which was only made for 2 years and attracts only £30 road tax but our car's original owner specified a number of "extras" like a panoramic glass sun roof etc - We've named her "Becky" (taken from the number plate) and she's my wee "project". It will be interesting to see, if I ever have to do a head gasket, what the cleanliness of the combustion chambers, piston crowns and inlet tracts looks like. Incidentally, whilst the subject of additives is being considered, I've never been at ease with oil additives, either for engine or transmission. I much prefer to buy a really top quality oil which complies fully with the vehicle manufacturer's specifications. It's worth taking into account that the latest research into LSPI seems to be finding that engine oil is playing a big part. several oil manufacturers are now developing oils specifically to address this problem and try to reduce the destructive roll of the oil in this LSPI problem. I read they are also trying to reduce it's roll in the inlet tract clogging problem so I take this as an indicator that if you have one of these downsized but powerful turboed wee engines putting an oil additive in it may be ill advised?

Being an old f**t I drive quite conservatively these days in that I don't often rev an engine above about 4,000 rpm however I'm no "moving traffic jam" either. On the long journeys - Edinburgh to Barnstaple in north Devon and sometimes to Salisbury Wilts, typically 3 journeys per year before the Covid rubbish kicked in, The Ibiza would consistently return almost exactly 60 mpg - slightly under when she was new, now never less than 60 (calculated from "2 click" tank full to "2 click" refill) cruising at 70 with cruise engaged wherever appropriate and "comfortably" keeping up with traffic flow on normal roads. - by which I mean, not particularly trying to drive "economically". I'm less sure what I get running around locally but I regularly see figure in the mid 40s appearing on the dash display when traveling across town and then out into the country south of the city where my two boys live. Interestingly perhaps? my old 1999 Cordoba estate 1,9tdi - the engine before the PD, and a car I absolutely loved and still mourn it's passing - returned virtually identical fuel consumption although it did not have cruise.
Cheers for the feed back m8, on the fuel cap it says 95 Ron so I'm taking that's super unleaded, are the performance fuels 98 Ron yeah?
 

Catzeye83

Active Member
Jun 21, 2021
49
4
41
Newcastle upon Tyne
Short answer; no. I wouldn't waste your money. I'm currently paying 10p/litre premium on momentum (for some reason it's gone up). You won't see any difference on a 1.0, 1.2 or 1.4 TSI. Unless your car explicitly states 98 RON min, like the performance cars do, don't bother.
Cheers m8, it states 95 Ron on the fuel cap that is super unleaded isn't it
 

Mike the_cupra

Active Member
May 29, 2020
158
81
Cheers m8, it states 95 Ron on the fuel cap that is super unleaded isn't it
95RON is normal unleaded (in most garages), BP, Shell, Tesco, Sainsburys, etc. BP ultimate, Shell V Power and Tesco momentum is 99RON. Trust me its a pain going on road trips and having to find 99RON, especially in the less dense areas of Wales/Scotland
 
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KXL

KXL
Dec 15, 2016
1,579
195
London, UK
My experience with fuels was that all the 95RON ran exactly the same on my Ibiza (1.0TSI though not 1.2TSI) whether it was Esso, Shell, BP, Jet, Texaco. I didn't use any supermarket fuel on 95RONS. Esso 97 however gave me the smoothest engine, and Shell Vpower 99 gave me the most extra MPG. The extra mpg did not qutie make it worthwhile to keep pumping the most expensive fuel, but as others mentioned, you should benefit if you ran the most expensive fuel every 4th or 5th tank for their cleaning properties. Extra power, I didn't measure on a dyno or anything, but I must admit, although my mind is telling me that Vpower or Esso 97 (now there's 99) should be giving me some more oomph, my backside was telling me that actually Tesco Momentum 99 may have given me a little more oomph. Didn't give me any smother engine or more mpg compared to 95RONs though. Perhaps this was Momntums 99 party trick, more oomph but not more detergents or mpg or smoothness.
 
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KXL

KXL
Dec 15, 2016
1,579
195
London, UK
Yeah what we're my confusion is coming from is it says super unleaded but like people are suggesting here 95 is normal un leaded🤔 I'll double check the filler cap when I get back to the car, cheers again for the responses
I think in UK, premium unleaded is 95RON, and Super Unleaded is 97 or higher? Pretty sure my Ibiza just showed 95RON, whereas the car I had after that (Volvo V40) said only E5 E10 in circles and manual stated 95-98RON.
 
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Stevieu

Active Member
Jul 6, 2021
8
2
I use normal unleaded in mine and every fourth of fifth time I fill up I use shell v power super unleaded to give everything a clean out now and then 👍🏼
 
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