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I've always run Red Ken on Tesco diesel simply because they have a filling station and I'm there every week anyway. Nothing wrong with that, it's not biodiesel and it has a cetane rating of 51 so it meets the Mercedes engine requirements for any warranty claims. As I was heading off to Scotland for a week I decided to put a tank of premium grade diesel through the 220d engine to see if I could notice any difference. I went up on Shell V-Power Diesel and came home on Morrisons supermarket diesel.
I did 486 miles on V-Power and got 49.5mpg @ £1.227/litre and would have cost £54.75
I did 486 miles on Morrisons and got 47.8mpg @ 1.157/litre and would have cost £53.47
So to do the journey on the V-Power actually cost me an extra £1.29 overall. Shell say their premium diesel has a cetane rating of 53 and contains 30% more detergents than their standard diesel. I couldn't detect any difference in engine performance. I may now do the occasional fill-up with V-Power just to keep the fuel lines and turbo free from crud but convenience will probably dictate that I'll mostly run on the cheaper Tesco stuff. The premium being charged locally for BP Ultimate Diesel is unlikely to see me on a BP forecourt any time soon. Even Dick Turpin wore a mask!
Please chip in with your own experiences and observations. There's a much stronger argument for running super unleaded in high performance petrol engines. Is that what you 43 people currently do?
I did 486 miles on V-Power and got 49.5mpg @ £1.227/litre and would have cost £54.75
I did 486 miles on Morrisons and got 47.8mpg @ 1.157/litre and would have cost £53.47
So to do the journey on the V-Power actually cost me an extra £1.29 overall. Shell say their premium diesel has a cetane rating of 53 and contains 30% more detergents than their standard diesel. I couldn't detect any difference in engine performance. I may now do the occasional fill-up with V-Power just to keep the fuel lines and turbo free from crud but convenience will probably dictate that I'll mostly run on the cheaper Tesco stuff. The premium being charged locally for BP Ultimate Diesel is unlikely to see me on a BP forecourt any time soon. Even Dick Turpin wore a mask!
Please chip in with your own experiences and observations. There's a much stronger argument for running super unleaded in high performance petrol engines. Is that what you 43 people currently do?