90tsi vs 77tdi

[Transporter]

United petrol stations have dodgy diesel.
Avoid at all costs.

Source: Myself; two separate incidents at two separate servo's 100km apart.
I think it was K1W1, who had the friend with an A4 who experienced v.dodgy running and economy after using United diesel.

Yes, it pays to use BP and buy from the newer servos where is good turn over, also keeping all fuel receipts may help if the disaster strikes.