Hi all. Involved i trying to bring a 2002 Octavia 1.9TDI Auto back from years of neglect by previous owner/s. First job on noticing a very high level of oil on the dipstick, investigate drain and replace with quality oil etc...first negative: silicone all over the sump drain plug never a good sign...the plug almost fell out when i started to turn it, so bad was the damage to the thread in the pan. I tapped the thread out 1mm and fitted new matching plug, no problem. But the oil warning light came on while driving next day, so uderneath again, the sump pan was smeared with fresh oil misting. Cleaned up the whole area and drove far enough to get up to temperature, and on getting under again, a clear dribble of oil coming from around one of the sump fixing bolts. Checked all bolts and they were pretty tight, already tightened i guessed. So new sump acquired, and as i've never fitted a sump without a gasket before, i'd appreciate any advice about which type of sealant to use for this job - there are of course hundreds out there. I'd prefer one that doesn't go off too fast as i like to have a relaxed approach to jobs! Finally, is it better to run the bead of sealant along the outside of the bolt holes, or along a line inside the holes ? I've seen both specified. Any other tips on this job would me much appreciated. Thanks.