a tank belsejet, ha kitisztitod, kezeld valami ilyennel, megeri.

https://www.ebay.de/itm/Tapox-ethanol-resistant-Petrol-tank-sealer-Not-Petseal-Ducati-Mz-Moto-Guzzi/261153714212?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D53958%26meid%3D019ae6339bd14af28e82b34ee3d7efda%26pid%3D100970%26rk%3D6%26rkt%3D15%26mehot%3Dpp%26sd%3D382565329453%26itm%3D261153714212&_trksid=p2481888.c100970.m5481&_trkparms=pageci%3A944e2a41-bf41-11e8-b68d-74dbd1806dea%7Cparentrq%3A06f352881660ab4527de1154ffff9568%7Ciid%3A1