That’s the best solution I’ve heard of for the sticking fuel door. 😂
About a month ago I picked up a fixed 2011 JSW TDI w/ DSG, pano and 78k miles from a Toyota dealership. Since I didn’t trust that they used spec oil at Toyota, today I exchanged it for some Liqui Moly 4200, Ceratec, and Mann filter. I must say that I feel the difference. Before when I would coast to a light, every downshift was rough and jerky. Now downshifts feel smooth and I can coast further than before. Luckily it had less than 1,000mi on that oil, but it still makes me cringe. This weekend she’ll get a DSG fluid swap, and then coolant is soon after that.