When I had the 2006 MPS, I just used the United E10 95 RON blend as the usage was the same.... no noticeable power difference, and cheaper price.
Then the Diesel Xtrail got put on me in 2009, I went BP, as at least they have their fuel quality guarantee.... and diesel smells the same everywhere,
Yet to refill the Liberty GT as it came with a tankfull of something
but I might try the United stuff again - I have nothing against ethanol at the right price. Don't reckon getting 104 RON ELF fuel from the Targa Tas supplier in East Devonport is worth it though 