The above is very interesting but my concern over Tesco fuel wasn't the MPG (I gave up trying to work that out when they changed to litres) but the way the car behaved on acceleration. In my case (on unleaded fuel) there was certainly an improvement in acceleration which was noticeable within a couple of trips. Yes, I was aware I had changed the fuel but I didn't do it to test the difference...I did it because having reduced their prices it was more convenient to use my local garage. I drove the car exactly the same so I don't think there was a placebo effect.
as far as im concerned all fuel should be the same.Its bloody expensive wherever its purchased from so why do they feck about with it.We all know these oil companies are greedy twats and do not pass on savings to the consumer without a fight.I really dispize them all but i need fuel to tow.However,i would sue them if their fuel damages my car.I think i will avoid the supermarkets in future.
------------- i dont sell cheap tat.I sell tat cheap
Quote: Originally posted by cbreddie on 17/1/2015
We used to fill up at tesco for years. we had loads of issues with engine management lights coming on. Since we swapped over to Shell or other better brands we havent had any problems.....
Now before you all shoot me....
We have ALSO changed the type of mileage the car is doing. Our car is a Mazda6 2.0 diesel and we were doing mainly around town miles.... but in the last two months we have started doing about 200miles per week just on the motorway.
So maybe the lights on the dash were not caused by supermarket fuel.... I guess we will never know.
So my post is utterly inconclusive but then again the whole subject is impossible to prove as one cant generalise, because there are so many variables, IE....
Type of fuel (diesel or petrol)
make of car engine
type of mileage
style of driving
what weight is the car carrying
climate variances (temperature, humidity and the like)
There are lots of different combinations and the only way to see a difference is to try it out for yourself with the set of your own (combination of variables).
If your exhaust has a particulate filter on it(don't know whether yours has or not),they get clogged by short runs and need to be regenerated by a high speed motorway run.If it gets too bad it has to be cleared at a garage.
The wife's last 2 lease cars have been run totally on supermarket diesel(she works for one at the moment)and have not had a problem in 5 years.
Having said that my old Convoy does seem to like Jet diesel better than any other.
We have 20+ vans at work all doing around 100,000 miles a year. Half have Shell fuel cards and the other half have Genie fuel cards so get filled at Tesco or Morrison's.
The vans running on Shell fuel return better mpg and have less engine problems than the vans using the supermarket fuels.
The most common issue is that the fuel filters need changing more often on the supermarket fuel vans as they get "gunked" up! The shell fuel vans do not have this problem.
I can't remember having the fuel filter changed on our TD5 despite using Tesco fuel. We have been told above that the original fuel is the same so the additives put in the shell fuel somehow stops fuel filters geting blocked.
If company vehicle drivers have cards to fill at Tesco then they do right to fill up there & get the clubcard points, its not them paying for repairs. I was able to fill my truck up at Tesco yrs ago & it paid for all my holiday Eurotunnel trips.
I own a 06 2.9l Seddona, bought in 09 with 24,000 on the clock. I'm now just short of 100,000. I've filled up mostly at Supermarkets, Asda/Sainsburys/Morrisons and now mainly Tescos since they came to Prestatyn.
Apart from normal Services, done at the usual intervals. All repairs have been on Non engine parts.
Despite the Combined figure being 33mpg, I average 39mpg as I live in a semi rural area, so mainly non stop/start journeys.
The fuel filter is changed as standard as part of the service, whether it needs it or not [I've done that with every diesel I've owned] . The last service was 10 months ago. Not a single issue with supermarket fuel,and when I change cars, I'll happily carry on using supermarket fuel.
My next door neighbour owns a Garage/Breakdown service, all their vehicles are filled up at a supermarket. If the fuel was costing them extra money, they would not do so.
Dave
------------- 2015 Dates
April Llyn Rhys Farm
August Barleylands Essex
September TBA
Halloween field in Bala sharing with Birds of Prey
Quote: Originally posted by charlichoo on 18/1/2015
We have 20+ vans at work all doing around 100,000 miles a year. Half have Shell fuel cards and the other half have Genie fuel cards so get filled at Tesco or Morrison's.
The vans running on Shell fuel return better mpg and have less engine problems than the vans using the supermarket fuels.
The most common issue is that the fuel filters need changing more often on the supermarket fuel vans as they get "gunked" up! The shell fuel vans do not have this problem.
I fill my own car with Shell fuel.
You may find that the guys who fill up at the local supermarket all fill up on the same day, and that might be the day that the fuel station is filled up.
------------- Never look down at anybody....
.....unless to offer a hand, to help them up
Quote: Originally posted by cbreddie on 17/1/2015We used to fill up at tesco for years. we had loads of issues with engine management lights coming on. Since we swapped over to Shell or other better brands we havent had any problems.....
Now before you all shoot me....
We have ALSO changed the type of mileage the car is doing. Our car is a Mazda6 2.0 diesel and we were doing mainly around town miles.... but in the last two months we have started doing about 200miles per week just on the motorway.
So maybe the lights on the dash were not caused by supermarket fuel.... I guess we will never know.
So my post is utterly inconclusive but then again the whole subject is impossible to prove as one cant generalise, because there are so many variables, IE....
Type of fuel (diesel or petrol)
make of car engine
type of mileage
style of driving
what weight is the car carrying
climate variances (temperature, humidity and the like)
There are lots of different combinations and the only way to see a difference is to try it out for yourself with the set of your own (combination of variables).
If your exhaust has a particulate filter on it(don't know whether yours has or not),they get clogged by short runs and need to be regenerated by a high speed motorway run.If it gets too bad it has to be cleared at a garage.
The wife's last 2 lease cars have been run totally on supermarket diesel(she works for one at the moment)and have not had a problem in 5 years.
Having said that my old Convoy does seem to like Jet diesel better than any other.
All our engine management faults were to do with the egr valve/system.
------------- Never look down at anybody....
.....unless to offer a hand, to help them up
I have 2 diesel Freelanders, one more than ten years old and the other built in 2008. The newer Freelander doesn't seem to mind what fuel we put in it, it doesn't make any difference to performance or fuel consumption.
The older diesel Freelander is a different story. MPG is much improved using fuel from our local co-op (same motorway journey 5 days a week) and definitely runs smoother (and quieter). Even when taking into account the small additional cost of fuel, it is still cost effective
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Topic: decent fuel for car
