did i hear my name?? 
The seiT isn't that bad on petrol at all if you drive it sensibly to be honest.. Problem is that is doesn't encourage sensible driving haha. But if you do drive it off boost its not much worse than a normal cento really. the problem arises at motorway speeds, its just not really possible to drive it off boost at motorway speeds with it being such a small turbo. Mileage from 1 tank varies so widely on the driving your doing i can't really comment - but i can tell you it won't do 250 motorway miles on one tank.
But at the end of the day don't let the petrol put you off a turbo, its more servicing the thing that costs the money really as you should be doing much more regular oil changes than a unmodified one on top of which you don't want to be buying cheapo crappy oil for it and decent oil isn't cheap.
Reliability isn't really a problem either, i have had a cinq turbo and a sei turbo and neither have ever broken down on me - yes i have had issues arise with them but they always got me home (ok my seiT is just a toy car and so hasn't covered many miles in the grand scheme but the cinq turbo was a daily driver and got driven hard as i was young and immortal back then). So long as its built properly and the fuelling is setup properly you shouldn't have too many problems.
The seiT isn't that bad on petrol at all if you drive it sensibly to be honest.. Problem is that is doesn't encourage sensible driving haha. But if you do drive it off boost its not much worse than a normal cento really. the problem arises at motorway speeds, its just not really possible to drive it off boost at motorway speeds with it being such a small turbo. Mileage from 1 tank varies so widely on the driving your doing i can't really comment - but i can tell you it won't do 250 motorway miles on one tank.
But at the end of the day don't let the petrol put you off a turbo, its more servicing the thing that costs the money really as you should be doing much more regular oil changes than a unmodified one on top of which you don't want to be buying cheapo crappy oil for it and decent oil isn't cheap.
Reliability isn't really a problem either, i have had a cinq turbo and a sei turbo and neither have ever broken down on me - yes i have had issues arise with them but they always got me home (ok my seiT is just a toy car and so hasn't covered many miles in the grand scheme but the cinq turbo was a daily driver and got driven hard as i was young and immortal back then). So long as its built properly and the fuelling is setup properly you shouldn't have too many problems.
