Looking to pick your collective minds. Car has felt a bit stuttery lately, only ever buy Tesco petrol. Almost ran out of petrol yesterday and just got £10 from a Jet station on way home. Car felt instantly smoother, no stuttery misfiring feeling. Acceleration felt smoother setting off etc. So placebo or something in it?
Did you put standard unleaded in or super stuff, higher octane? If it’s stuttery generally, I’d brim the tank up and put an additive in, redex or similar
A mate of mine told me years ago to keep away from supermarket fuel, cheaper but not as good I must admit, I was sceptical.
I've been using supermarket fuel for as long as I can remember now. It must be 20 years or so and I've never had a problem
Supermarkets sell almost half of all petrol in the UK according to this article. So if there's an issue it's going to affect most people https://www.telegraph.co.uk/finance...ell-almost-half-of-all-petrol-sold-in-UK.html
You want to take your wheels off and check your discs and pads. Then remove the engine, battery and interior seating - give the car drive and see if its still there. Finally hit it with a hammer.
Service and mot next week so will see what comes up then. I haven't the knowledge or ability to change these things anyways.
Used redex for first time in my diesel last year. 2 weeks later it almost failed the MOT on emissions. Wouldn't use it again.
if you are having a major service the spark plugs will get changed, they sit in the coil rack which might be ok. its not an expensive or a long job at the garage
Could be genuine but Jet always used to be viewed as the cheap and dodgy fuel before Supermarkets muscled in. The Main brands BP Shell Texaco Total etc put extra products in to clean your engine - most experts seems to think they help. Also if you put in the premium versions like shell V-Power, BP Ultimate or Total Excellium, they have a higher octane/cetane rating - which depending on your car could well improve performance and MPG. I used to get an extra 30 miles or so out of a tank on Shell V-power compared to standard - which pretty much offset the difference in price in my old Peugot 407Diesel but it made no difference in my 520 Diesel. Cant tell with the latest car as not been doing repeatable journeys for comparison over the last few months - and to be honest have been putting supermarket stuff in most of the time
Your mate is right TT. I bought automotive fuels in bulk for some 70 Councils over a thirty year period and had the pleasure of being shown round the Shell Research Lab at Thornton. Along with all the other major refiners, Shell put specialist enhancers and additives in their base products which are manufactured to comply with both BSEN and European Vehicle Manufacturers recommended standards. The tankers go under a gantry at the refinery and the fuel that goes into the compartments are co-blended at the point of delivery. Within the Thornton lab , there are engines from all makes of cars and they are operated using fuels from rival companies including fuels from supermarkets, so they track mpg and spot any damage being done to an engine. The claim was that Supermarket fuels complied with BSEN standards but was blended to the lowest standard spec i.e it did not contain any of the addiditives or performance enhancers of the recognised quality brands. Having said that they never said that there was anythingi wrong with supermarket fuels per se. You can prove Shells claims to your own satisfaction quite easily, fill up with a tank full of Shell premium fuel. Guaranteed, your vehicle be it Motor Spirit or Derv will absolutely fly.! https://www.autofuelfix.com/supermarket-fuel-vs-branded-fuel-whats-difference
I was always told to top car up once a month (was filling weekly)with Premium fuel as it’s better for car, never have though.
Taxi driver mate of mine with the same car as me, told me the same.. stay away from Tesco and always put the high grade of desiel in... His car had done 300k.. mines done 45k
