What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
Is supermarket fuel poor quality?
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 and turned out it was a Nox sensor failure, Strange thing is whilst in the Audi dealer I was told it would take a few days to get the part as there was a run on failures so parts were low. Only a week later my brother rang to say same fault on his Audi Q5. Now these parts aren't cheap, £800+, fortunately my car is under warranty.
Is it possible to prove what caused the damage and how can this be avoided in future?
My 25k mile Audi Q7 engine light came on recently and turned out it was a Nox sensor failure, Strange thing is whilst in the Audi dealer I was told it would take a few days to get the part as there was a run on failures so parts were low. Only a week later my brother rang to say same fault on his Audi Q5. Now these parts aren't cheap, £800+, fortunately my car is under warranty.
Is it possible to prove what caused the damage and how can this be avoided in future?
Asked on 16 November 2023 by Chinleyman
Answered by
David Ross
There is no evidence to suggest that supermarket fuel is inferior quality, as they conform to the same British standards as any other fuel sold and are supplied by many of the same large refineries. Premium fuels such as Shell V-Power may offer additional benefits thanks to additives designed to reduce wear, but you should experience no problems from using standard fuels.
Our Fuel Cost Calculator shows you which will be the best choice for you.
Compare the running costs of petrol, diesel and electric cars to make the right choice for you.
Similar questions
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 on the clock. I only use my car for social journeys,...
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 RON, which is significantly cheaper than the 98...
My Volkswagen Golf R is recommended to run on super unleaded 98 RON which is now super expensive. I know the performance and mpg might drop slightly if I use 95 RON E10 fuel but will it damage the engine...
Related models
.jpg?width=115&height=75&rmode=crop)
Even more refined and upmarket than original Q5. Lovely quality interior. Electric tailgate fitted as standard. 2.0 litre petrol plug-in hybrid from May 2019.
Cars for Sale
-
£27,008was £27,357Details -
£30,050was £30,300Details -
£23,700was £25,050Details -
£20,500was £21,700Details
Elsewhere on 
.jpg)
