hi guys and gals
i thought i would prefix this tuning.
well i started to find my jtd was starting to get a bit smokey at around 2.5krpm. i asked the mrs to drive my car whilst i followed and yep it was smokey as hell, i then asked her to toe it up to 4krpm and i couldnt see her infront.
i know its an oil burner but that was bad, the car was still pulling like a train and wasnt missing at all.
anyways i solved the problem. i was thinking it could be an injector leak, air in fuel line, valve needing reseating, or a oil wiper gone on the piston rings, you get the idea.
my turbo pipes were cleaned only a little while ago when i had it all in pieces to replace various part and put an panel k&n filter in.


one word, tesco.......
yep tesco fuel is the problem, i original changed to asda and it cleared the problem almost immediatly, also the mpg went up by around 3-4mpg!!!.
i then tested with bp, and got a very similar result, better mpg and far FAR less smoking when toed.

i never belived all the hype about different fuel makes, i thought they were all basically the same, but it seems that tesco add some additive that isnt very good, i know they all put aditives in but tescos for me is now a big no no.

bp, or total fuel ive found to give best mpg, but they are usually slightly more expensive. im now running mine on 4 tanks of asda to 1 tank of bp / total whatever cheaper at the time.
anyone else found this, be it any of the supermarket suppliers?
roy

Try a tankful of BP Ultimate or Shell V-Power next time - you might be pleasantly surprised...

I use Tesco all the time, and mine is very smokey....

All I use is V-Power from shell. One of best fuels ive ever used, used to use tesco but will never go there or to any supermarket again after seeing more mpg and more power from V-Power. My engine is only a 1.4 but still i noticed straight away the difference. Helps keep the engine in good nick to by burning cleaner.

i need to fill er up today so i may give the bp top notch, it only really equates to around £3-4 per tank on the fills so it maybe worth the investment just to keep the injectors in pristine condition. i will report back my findings.
roy

Hi Roy
I have posted on this several times, supermarket derv is rubbish it’s cheaper for a reason.
When you take into account the better mpg I would guess the good stuff probably works out the same price, maybe a bit cheaper.
I have to smile when I see people queuing to buy derv at my local Morrison’s to save a penny a litre, on an average car they save about 50p a tank and they will probably get about 18 miles less on that tank which will cost them about £1.50, pretty good con.

Can't say I've ever noticed anything different between Tesco and BP's petrol. I always use Tesco for the clubcard points.

I've noticed that the power of the engine is severely compromised when I put regular petrol rather than high octane petrol, but the results differ from brand to brand.

In Romania, we most commonly use Petrom and their products are fine, but high octane Petrol fuel is much better than Rompetrol or LukOil in our country. I practically feel like I'm running with the handbrake on, and the smell.. sometimes I'm even embarrassed in traffic. Some products come out smelling like ****.

Fuel consumption also differs by 1 l/60 miles more or less if I have good petrol inside the tank.

just done it, bp ultimate at 5p more per litre at £122.9. its gona take a few miles before the fuel mixes and gets down the lines before i notice any difference i think. i cant imagine the car pulling any better though tbh, only thing i think will happen is the diesel clatter may quieten a bit and less smoke at higher reves. but now the car is pretty clean again i may not notice it.
i defo think that out of the supermarket brands asda is the best and there is very little comparison between total and bp, ive not been able to test shell as there isnt one i know locally.
roy

roy lovelock said:

ive not been able to test shell as there isnt one i know locally.
roy

Click to expand...

Same, there isnt one near me either, but i wanna try it in my JTD. Gonna tray my next tank on BP Ultimate and see if there's little or any difference. Personally i cant see it but you never know.

Strange, I've yet to see a Tesco oil refinery anywhere in the world, so where do you guys think Tesco get their supplies from? If you could see the queue of tankers at the local distribution centre down here in sunny Essex, you would understand that Asda, Tesco, Sainsburys etc. are all coming out of the same storage tank! I've been using Tesco for ever. My JTD wagon returns 46+ mpg, yes there's some smoke when you floor it, but show me the diesel that doesn't. Only time I've put anything like a "premium" fuel in the tank was in Belgium last year, that was because the regular was out of order, but the 10 cent per litre premium price showed no difference whatsoever in performance or smoke. Travelled around Germany for two weeks this year (1200+ miles) using their various brands including Shell, but stuck to the basic brew, again no diffirence in performance or smoke that you can notice from Tesco.

I'm a Shell user, not V-Power though. Normal stuff seems fine & I treat the motor to half a bottle of Diesel Magic every month or so (£4.00) That for me works out cheaper than V-Power diesel.

Is it just in Midlands where Shell is cheapest garage fuel (£1.17p / litre) as opposed to Supermarket gloop? I find BP extortionately pricey at around £1.23 / litre!

Thats £1.80 / 30 litres, £93 less a year!

Normal shell is 1.14 per litre in llanduddno N.Wales at the moment. The v-powers about 1.22 i think but i dont mind paying the extra for it. As thats the price of normal fuel from tesco here

As I understand it the difference is the additives in the fuel, city diesel is low sulphur which results in a cooler burn fine in cities but not to great if you want performance.
V- power is just ordinary diesel but has extra stuff added as it goes into the tanker.
I assume this is the difference between supermarket fuel and the good stuff; in short you get what you pay for.
Personally supermarket if I’m desperate and only enough to keep me going until I can get some decent fuel.

agreed the fuel is the same its what they add to it to make it go further...
well my multiwagon has just completed 212miles on bp ultimate, and i hadnt noticed any difference first off all, but now wow.
the first thing i noticed is the engine no longer seems to labour when doing just over 30 in 5th gear, it will even pull away in 5th from 30mph which it could never do on tesco rubbish.
i think it is a placebo effect but it does seem slightly quieter, but am not 100% sure on that tbh.
fumes from exhaust seems a hella lot cleaner even when toed, even following my mrs there wasnt that puff of black smoke there used to be or very little that i hadnt noticed, i could actually see the back of the car before she left me in the dust in her 1.6 multiwagon.
most of all the car pulls really nicely now, the acceleration is a lot smoother and more lively.
fuel consumption is also better - slightly. i was getting on the last tank 47.3mpg over 520miles asda diesel, currently im on 52.3 and increasing slowely over 212miles, i will report back when it gets to 500miles or so, im off work now for a few days so the car wont be used.
if those figures stay the same and normal diesel is 117.9 and the ultimate is 122.9 the ultimate works out the better value at around 10p per mile where the other diesel is 11p per mile, but that is if these figures stay at these reading, also tescos and asda can be cheaper than that, i will re look at this when my tank is empty as its very rough atm.
the main issue for me is the exhaust fumes and the branded diesel is far better from my tests..
roy