I'm afraid I disagree on the "no benefit" from premium unleaded.
For two reasons:
1. Most premium unleaded's have higher level detergency additives and will keep the engine cleaner. I have seen the gunk build up that regular unleaded can create compared to premium unleaded
2. BP claim that their Ultimate Unleaded has a higher calorific value, and that you will get greater mileage by using it. Check out their website for more info
I personally regard it as relatively cheap maintenance of your car. Despite being a very early adopter of V Power, I switched to BP Ultimate. I believe it is a better fuel
E10 is not suitable for a number of Ford small cars. Ethanol can be highly corrosive and can effect certain plastic parts in the fuel system if it's not designed for them. I always thought that was the problem for these "unsuitable" cars (Focus LR is also unsuitable)
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Manual 2003 Machine Silver 5 Door LR Focus Zetec. Mods: Ford Racing CNC'd cylinder head milled .040", 3 angle valve grind. Ford Racing Stage II camshafts. Ford Racing cam gears. Ford Racing long tube header. Random Technology hi flow cat. Herrod 2.25" stainless cat-back. Pipercross Viper intake. CFM 65mm throttle body. 2000 ported intake manifold. Herrod Custom SCT tune. Eibach suspension. Quaife ATB diff. Wilwood 13" brakes. Custom ST170 leather interior. www.cardomain.com/ride/2773918
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