Supermarket Diesel

[silverfox]

I have an 09 1600 HDI and have been told by my local garage to stay clear of cheap supermarket diesel due to it been dirty and problematic. Any thoughts of bad experiences?

John

[malgpz900]

Used Asda diesel for the last 20 years. Never had a problem.
Malcolm.

[dieselj]

big can of worms this.

i have a 54plate 2.0hdi. runs so much smoother on shell. I also own a 23year old 3.1d trooper that really will run on owt! but also runs so much better on shell/bp. starts better, pulls better and sounds better.

the only reason supermarket fuel is cheap is because there is no additives in it. those additives help clean and maintain your engine.

why not try it and see for yourself. run your car really low and then nip to shell and put some v power in. £20 is more than enough to find out if there is a difference.

[Top drive]

IME with 1.9d i regularly get about 100 miles less per tank with tesco diesel (brim to brim not just when it goes click)

Asdas not as bad but im constantly surprised that BP/shell diesel goes so much further.

On the continent i filled up at a carrefour station. Holy bejebus it fairly got through that fuel - as well as it was smokey as f**k.

How ever in about 120000 combined miles across both my 1.9ds ive never bothered as much as to avoid fueling at a supermarket.

If i had an ultramodern HP injection system i might be more picky

[polar]

At one time i thought it was true that supermarket fuel was poor and i avoided it like the plague but its aprox 5p per gallon cheaper than total or shell around our way so i have tried it. No difference in MPG or power/smooth running. BUT i always ad Millers so maybe thats adding something that combats the chance of getting poor fuel?

I have also started to ask other people what they use and the consensus is mainly supermarket because of the cost - no adverse injector/pump problems to date.

[geoff]

I try to use my local Texaco station but occasionally need to use supermarket fuel .... however ...

For the last three fills my wife has used Sainsbury for fuel and gradually I've noticed the car isn't so smooth running overall and is rougher / harsher when cold taking longer to get to that nicely warmed up feeling. I've also noticed the odometer is typically showing less miles per tankful, around 50 miles less. Such experiences usually makes me wonder if I'm late with the servicing !

Filled up a few days ago once more at Texaco but used the posh diesel version as they were waiting for a delivery of the standard stuff. After a few miles the car seemed to be running really nicely, the next morning the cold start was much better giving smoother running from cold and without the harshness of before.

I won't claim better performance or even better mpg but I will definitely try the posh diesel again, normally I use standard Texaco diesel with Millers added occasionally so overall the cost difference of the posh diesel is cancelled out.

Ever fried an egg in a new Teflon pan as against a 6 month old pan and enjoyed the difference ??

[Silverberlingo]

I have never bothered with diesel but do use an additive every 3rd tank. I always get it from Morrisons in both cars. I did however only run my motorbikes on super unleaded and from Tesco as theirs is 99 octane and Shell V power 98 which is the same as BP !!!

[my mucker]

I normally put £10 worth in once a week at my local Texaco garage which is just across the road from my home (dont go very far,only golf course 3 times a week )anyway i tried the dearer diesel for a change, i think it was 14p a litre more,but i felt the difference in performance straight away,so i put that in every third week now !!! and theres not much difference in the mileage

[Opensauce]

Supermarket diesel has smaller additive package than branded diesel. If additive contains cetane improver then engine will tend to run smoother. Additive package is added to diesel during tanker loading. Shell & Tesco will both load UK retail standard diesel including cold weather additive in winter from same storage tank but Shell tanker will have more complex additive packaged added during loading process.

The more expensive V-power diesel is a mixture of regular diesel & synthetic diesel processed from lpg. Supposed to produce a cleaner diesel that may reduce wear to fuel system over high mileage.

[silverfox]

big can of worms this.

i have a 54plate 2.0hdi. runs so much smoother on shell. I also own a 23year old 3.1d trooper that really will run on owt! but also runs so much better on shell/bp. starts better, pulls better and sounds better.

the only reason supermarket fuel is cheap is because there is no additives in it. those additives help clean and maintain your engine.

why not try it and see for yourself. run your car really low and then nip to shell and put some v power in. £20 is more than enough to find out if there is a difference.

I have hence the question. I did run on cheap diesel for a year or more then started to have problems with emission faults.  My local garage suggested a cleaner type additive and a good thrash, I do a lot of local driving so rarely does the car get a thrash.  Once again the problem presented itself!  Since a new EG valve (I think that's what they called it) and i have run on Shell it has run like a dream.  However, with price increases the supermarket is calling again......