I have I think Fuelly yata yun before. For almost 3 years I religiously logged my fuel purchases with the odometer readings. Pati na rin mga parts purchases at service fees. So talagang kumpleto ako ng data about my car from the time I purchased it. Then my phone black screened taking all my records for that many years. Ngayon I just rely na lang on my dashboard reading for my FC. I don't think I can still reconstruct all my data that had been lost.