Diesel supreme

[Paul]

Going back to the good old days with petrol, there was 4 star and there was 5 star. My experiences with P6 Rovers was that the UK 2000TC required 5* because of its 10:1 compression ratio. When 5* disappeared running on 4* without modification would cause pinking and running on. The cure to retard the ignition.......they ran far better with the correct set up and 5*. So perhaps if the engine is not designed to use a higher grade fuel then there may not be any benefit and possibly slightly worse performance.

[Neal_1974]

The extra additives stop build up of gunk so it keeps it running like new supposedly but i never noticed a difference in my 2.0l ecoflex

[MJSROOFING]

Once the Texaco offer ends I might try bp to see if there is any difference there.

[Neal_1974]

Bp in tests came out the best and made an extra 3bhp but I didn’t really notice any difference but then I don’t drive hard these days to notice that

[Neal_1974]

I think the test car was a golf, ill see if i can find the review

[Neal_1974]

https://www.confused.com/on-the-road/cost-of-motoring/is-it-worth-paying-more-for-premium-fuel

[exclusiv.]

Snake oil