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Will supermarket fuel damage my injectors? 12 Jul 2024 (Ask HJ)
I have heard that supermarket fuel damages the fuel injectors and its best to use non supermarket fuel - is this true? -
Waitrose supermarket fuel - is it any good? 12 Nov 2012 (Ask HJ)
My local Waitrose supermarket has just changed from BP fuel to Shell. On your advice I have avoided supermarket fuel like the plague. As I believe... -
Supermarket fuels - are they that bad? 11 Nov 2011 (Ask HJ)
Does your advice regarding the use of supermarket fuels still stand? I understand that you recommend the use of premium fuels (diesel in my case) as opposed... -
Is the diesel fuel that I buy in a supermarket any different from Shell or BP? 10 Sep 2018 (Ask HJ)
Is the diesel fuel that I can buy in a supermarket filling station really any different that the diesel that I can buy from a Shell or BP garage? -
Will supermarket fuel damage my engine? 21 Aug 2024 (Ask HJ)
I have read recently it is not good to use petrol from supermarkets as it does not have the same additives as regular garages and can lead to engine problems... -
Is supermarket fuel inferior to petrol station fuel? 25 May 2013 (Ask HJ)
Why will no one do an in-depth review on supermarket v/s the big four fuel suppliers? I am a tanker driver (not fuel) and over the years have asked at... -
Why do some supermarket fuels give lower mpg? 30 Apr 2016 (Ask HJ)
I have noticed a considerable difference in mpg when using some supermarket fuels compared to Shell V-power. Is this due to supermarkets buying low grade... -
Does supermarket fuel have 'lower capability' additives? 14 Jan 2022 (Ask HJ)
I have been advised that petrol additives are actually added during fuel station delivery. Non-branded stations, such as supermarkets, receive fewer or... -
Supermarket fuel v branded fuel - which is best? 27 Mar 2024 (Ask HJ)
I have a question for you about what is the best, most suitable fuel (petrol) to put in my recently bought 2019 Kadjar S Edition 1.3 TCe 140 EDC with 21K... -
I know you are not in favour of supermarket fuel, but... 15 Nov 2012 (Ask HJ)
I know you are not in favour of supermarket fuel, so I decided to check it out against my normal fuel which is Shell regular diesel. I drive a Nissan... -
Is supermarket fuel inferior to petrol station fuel? 30 Nov 2013 (Ask HJ)
It was recently suggested to me that fuel obtained from supermarkets is inferior to that obtained from filling stations and service areas and is “diluted”... -
Buying branded diesel worthwhile? 3 Mar 2012 (Ask HJ)
I have recently experienced a blocked fuel filter on my 1 year old Isuzu Rodeo with only 10,000 miles on the clock. The garage / mechanic from the... -
Is supermarket fuel poor quality? 16 Nov 2023 (Ask HJ)
Is supermarket fuel quality being compromised due to the large mark up they are being allowed to charge? My 25k mile Audi Q7 engine light came on recently... -
What octane petrol should I use in my JCW MINI? 15 Aug 2022 (Ask HJ)
What octane petrol should I use in my John Cooper Works MINI? The handbook recommends Super Plus, with 98 RON. One of the leading supermarkets sell a 97... -
Should I use supermarket petrol? 9 Apr 2014 (Ask HJ)
Should I use cheap supermarket petrol or better quality branded fuel? -
Did supermarket fuel cause a blocked fuel filter in our Nissan X Trail? 28 Jul 2012 (Ask HJ)
I read with interest a recent article you posted regarding supermarket fuel and thought I would share my feedback. Following your advice, after purchasing... -
Saving pence, spending pounds 21 Feb 2009 (Ask HJ)
My wife took her 2002 RAV-4 for a service, which was uneventful. However, a few days later the engine management light came on, so back it went. The service... -
Why shouldn't I use supermarket fuel? 1 Jul 2012 (Ask HJ)
I get the impression that you think it best to avoid supermarket petrol. Why? -
Supermarket diesel? 1 Aug 2011 (Ask HJ)
I own a Toyota Corolla Verso 2.2 D4D. The Toyota dealer recommended that I not run the car on diesel purchased from supermarkets (do you agree with him?).... -
Supermarket fuel vs independent suppliers - which is best? 29 Dec 2014 (Ask HJ)
Last week you advised against supermarket petrol. I have long been confused about this issue. I have been told by one chap who was 23 years in the oil...
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