homer42 Posted February 16, 2006 Report Share Posted February 16, 2006 Hi guys, Is there any difference to performance or MPG when you use supermarket diesel other than Shell BP etc? Thanks Link to comment Share on other sites More sharing options...
BenjaminTDI Posted February 16, 2006 Report Share Posted February 16, 2006 can of worms mate! I always thought it was fine. Other people hate it. It's personal preference really. The premium fuels have a placebo effect though Link to comment Share on other sites More sharing options...
Durrsaku Posted February 16, 2006 Report Share Posted February 16, 2006 Forget it mate. Link to comment Share on other sites More sharing options...
Chav Posted February 16, 2006 Report Share Posted February 16, 2006 The whole point of diesels is to save money, right? So why do people put expensive diesel into a car, when diesel is already dearer than petrol, and the car itself was dearer too? If I had a sootchucker, I'd put the cheapest stuff in I could to get the most miles per buck! Link to comment Share on other sites More sharing options...
neilp Posted February 16, 2006 Report Share Posted February 16, 2006 Having had my fair share or tuned and non-tuned diesels I've never really noticed the difference, not to the extent of running optimax in the TT. The only possible difference is less smoke with the premium brands on hard acceleration. Link to comment Share on other sites More sharing options...
Durrsaku Posted February 16, 2006 Report Share Posted February 16, 2006 So tell me Chav what do you put in your car? Having a diesel car doesn't mean you don't love it and stops caring what you put in. Instant fuel economy is one way of saving having a diesel but caring for it as you well know (cos its true for any car) saves more in the long run. Link to comment Share on other sites More sharing options...
Chav Posted February 16, 2006 Report Share Posted February 16, 2006 I put any old petrol in! To be honest, I tried optimax and the MPG went down! But I only notice the MPG when I go to cambridge and back ...usually I can get there and back with over a 100 miles left! With optimax I had 50 left. And it's not like you can floor it everywhere, as there's traffic/cameras etc. Usually cruise at 80 in the day, and faster at night! ...using normal/cheapo petrol I often get 450 miles+ from a tank. Different story when I have a play or do some urban miles... 320-380 miles from a tank then, I'd guess. Link to comment Share on other sites More sharing options...
BenjaminTDI Posted February 16, 2006 Report Share Posted February 16, 2006 [ QUOTE ] The whole point of diesels is to save money, right? So why do people put expensive diesel into a car, when diesel is already dearer than petrol, and the car itself was dearer too? If I had a sootchucker, I'd put the cheapest stuff in I could to get the most miles per buck! [/ QUOTE ] If I were to put the cheapest stuff in I could find, well...i'd expect: -lower performance -more chuggy at idle -less mpg -more smoke Diesels seem very sensitive to low grade fuels in my experience, but I have always thought Total and Jet are worse than supermarket diesel. No idea what their unleaded is like though. Link to comment Share on other sites More sharing options...
homer42 Posted February 16, 2006 Author Report Share Posted February 16, 2006 All fair points, just checking if there was evidence to justify the premium price - Tesco & Asda it is then. :-) Link to comment Share on other sites More sharing options...
BenjaminTDI Posted February 16, 2006 Report Share Posted February 16, 2006 [ QUOTE ] All fair points, just checking if there was evidence to justify the premium price - Tesco & Asda it is then. :-) [/ QUOTE ] I suggest you make your own mind up though...especially since they will start putting summer diesel in again soon Link to comment Share on other sites More sharing options...
Lynas Posted February 16, 2006 Report Share Posted February 16, 2006 I only use shell... Jet's grade of fuel is pap Link to comment Share on other sites More sharing options...
Durrsaku Posted February 16, 2006 Report Share Posted February 16, 2006 The problem with Tesco and Asda is that you will never know where they are sourcing their fuel from so it could be, just for the sake of arguement, BP, Shell or any other brand. Now that is all fine to use with your 10-15 year old diesel but with the recent diesel tech? You see the VAG diesel engine is made of so many different sensors which feed into the eccu all sorts of data and the engine's electronics respond to this data in terms of economy, performance and optimal working condition. These variables are very much depended on the way you drive, journeys you make and fuel you put in. Now if you you change any of them then this is directly going to affect the outcome by that i mean the way your engine will perform. Now there is also the fact that different oil companies use different additives with their product which takes its toll on the good old engine. Some say from their experience that VAG diesels work better with Shell some say BP. You need to find out for yourself but for engine's sake stick to one. Now some only notice it on the outter results as more smoke, noise, less performance and economy ect... but think what is happening with the engine internally too. A lot more soot created, clogged up engine, damaged injectors ect. Oh well i could go on forever here but i think you get what i am saying. Link to comment Share on other sites More sharing options...
BenjaminTDI Posted February 16, 2006 Report Share Posted February 16, 2006 Durrasaku what fuel do you use? I always use BP regular or sometimes ultimate Link to comment Share on other sites More sharing options...
Durrsaku Posted February 16, 2006 Report Share Posted February 16, 2006 I use Shell as it is right next to my work place and it seems that the car likes it. I have used Ultimate too in long journeys and it is quite good to my opinion but you need to be buying it all the time to enjoy the benefit of it. I would have to drive a long way out of my way to get it though. Link to comment Share on other sites More sharing options...
Lynas Posted February 16, 2006 Report Share Posted February 16, 2006 its 96p a litre for BP up here. Stupid money innit? Link to comment Share on other sites More sharing options...
Milo Posted February 16, 2006 Report Share Posted February 16, 2006 I find paranoia is a great marketing tool. Link to comment Share on other sites More sharing options...
Lynas Posted February 17, 2006 Report Share Posted February 17, 2006 I agree. With the world ending next Tuesday, I've still got 50 of these bomb shelters left... any takers? lol Link to comment Share on other sites More sharing options...
Soapsuds Posted February 17, 2006 Report Share Posted February 17, 2006 have run my 1.9Tdi on Tesco's diesel most of the time (20k miles). In the winter it pulls like a train due to the colder, denser air and cannot complain about how it drives.... Have tried BP Ultimate, but its 99p /l near me and i have put it in a few times, for the sake of cleaning the engine. Seems to run very well on this in the summer / hot weather, giving it moor 'umph' than naff diesel. I dont care though. I get 700-720 miles out of a tank either way and will be chopping it in for a 6.0 V8 Monaro beast soon anyway.... Link to comment Share on other sites More sharing options...
Lynas Posted February 17, 2006 Report Share Posted February 17, 2006 Kiss goodbye to 700 miles from a tank.. lol. Try 250!! Link to comment Share on other sites More sharing options...
activa Posted February 17, 2006 Report Share Posted February 17, 2006 For a while I thought putting low grade diesel in wouldn't make a scrap of difference to how the car drove. However,I noticed a misfire on light throttle on motorway journeys and thought that it was a fault developing. The last two fill ups have both been at BP and the car hasn't missed once.Coincidence maybe,but nothing else has changed so I can only put it down to the fuel. Link to comment Share on other sites More sharing options...
Lynas Posted February 17, 2006 Report Share Posted February 17, 2006 Yeah. As I mentioned earlier, there's no point putting crud in a car you're wanting to run as a "premium car" so to speak. You wouldn't buy a ferrari and fill it at a Jet garage!! Link to comment Share on other sites More sharing options...
Chav Posted February 17, 2006 Report Share Posted February 17, 2006 [ QUOTE ] Yeah. As I mentioned earlier, there's no point putting crud in a car you're wanting to run as a "premium car" so to speak. You wouldn't buy a ferrari and fill it at a Jet garage!! [/ QUOTE ] You can't buy crud in the UK - we have very strict petrol/diesel standards. e.g. petrol is guaranteed to be 95RON unlike other countries. I think you're far too paranoid! I've never had a single problem, nor has anyone I've known. In fact, I don't actually know anyone (who isn't on TSN) that uses optimax or premium diesel stuff... no-one really cares that much to be honest. Any differences are minor. If you're planning on keeping a car for 20 years, then maybe the additives would help. But who keeps their "premium" cars that long. Usually people with dearer cars, swap them more! Just my 5p's worth. (which I save on every litre I put in the cab!) Link to comment Share on other sites More sharing options...
Soapsuds Posted February 17, 2006 Report Share Posted February 17, 2006 [ QUOTE ] Kiss goodbye to 700 miles from a tank.. lol. Try 250!! [/ QUOTE ] Oh yea baby!!!! But, hey, it will be a fun 250 miles.... Link to comment Share on other sites More sharing options...
Soapsuds Posted February 17, 2006 Report Share Posted February 17, 2006 [ QUOTE ] [ QUOTE ] Yeah. As I mentioned earlier, there's no point putting crud in a car you're wanting to run as a "premium car" so to speak. You wouldn't buy a ferrari and fill it at a Jet garage!! [/ QUOTE ] You can't buy crud in the UK - we have very strict petrol/diesel standards. e.g. petrol is guaranteed to be 95RON unlike other countries. I think you're far too paranoid! I've never had a single problem, nor has anyone I've known. In fact, I don't actually know anyone (who isn't on TSN) that uses optimax or premium diesel stuff... no-one really cares that much to be honest. Any differences are minor. If you're planning on keeping a car for 20 years, then maybe the additives would help. But who keeps their "premium" cars that long. Usually people with dearer cars, swap them more! Just my 5p's worth. (which I save on every litre I put in the cab!) [/ QUOTE ] I recon you hit the nail on the head there J. The point is, if you want PEAK performance from your motor - i.e. if you are tanking it around country lanes etc, then yea, BP ultimate might give you a good burst / clean your engine..... this will be fantastic for the car in the long run, but would you put 200k miles on it / keep it for 20 years...??? No.................. didnt think so. Save 5 or even 10p a litre on MOST fill ups and then pop a tankfull in evey 5k or something to clean out the system.... As Chav says, there is no such thing ans CRAP fuel over here - try driving in Vietnam / Thailand / Sri Lanka.... then you know what naff fuel is (91 octane PREMIUM!!!!) PS - i use Optimax in my Starion as a LAST resort! Prefer to run her on REAL 4* @ £1.20 per litre 10mpg - that hurts, i can tell you. Link to comment Share on other sites More sharing options...
BenjaminTDI Posted February 17, 2006 Report Share Posted February 17, 2006 I agree with what you've both said about the fuel quality, it is very good. But with some brands of diesel there will be a noticable increase in 'dieselness' i.e noiser, slower etc.. The other thing you have to be aware of is that some of the components in the modern high pressure diesels, is that the injectors rely on the fuel to lubricate them (if you put petrol through them they would be ruined in minutes as it's such a poor lubricant) so that's another reason I don't buy stuff that's cheap - yes it might be ok, but it might not be either, personally I don't want to risk it, as with oil I always buy the highest quality/recommend one I can find, and with injectors priced at 350-400£ it makes it look like an unneccessary risk for the sake of a few p per litre saving. Link to comment Share on other sites More sharing options...
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