I was under the impression that all of Shell's (and probably most other companies) fuel grades contain detergents.

Higher octane is just a waste of money if your vehicle doesn't require it. All of my current and past vehicles ran fine on the lowest grade available (87 here in the US, although it's measured differently here than Europe), and that includes my race bike.

Go find a snake in the wild. Open your gas cap and wring out the snake into the tank. Should do the trick.

I understand this is how they make Seafoam and Stabil, too.

A dream you had.

Quote from rc10racer :

I can't see how the replay is corrupt on a fresh copy of lfs, it could be down to my OS but doubt it, even trying to get the skinpack working without getting corrupted is a pain in the ass.

Sounds like bad/overclocked RAM or a dying hard drive.