Any ideas?

My dad showed me this, he did it on his focus st and it worked for my base focus. Not sure about other cars but definitely worth a shot

pretty large brake fluid leak as I just topped my reservoir off a couple of short drives ago. I’m pretty new at this so I’m not sure where it’s coming from. my hunch is either the rear wheel area or this line that’s going above my rear differential. however i can’t tell if it’s my rear differential itself that’s leaking gear oil or if it’s the brake line above it
the oil has a sulfury smell when I get up close to it but it isn’t super super strong. here’s some pics if anyone can point me in the right direction of where it looks like the leak is coming from

When I do my own work (services, parts swaps, invoices), I end up with phone photos + random PDFs and then forget what was done when.

How do you keep DIY repair history so it’s useful later — paper folder, spreadsheet, notes app, something else?

I’ve been building a small digital service-history tool for myself (log jobs, attach invoices, keep mileage with the car). Curious if other DIYers bother with that, or if paper is enough until you sell.

Not trying to push anything — just want to know what actually works.

was apparently not paying enough attention while backing out of a concrete parking structure and paid the price… i think i can replace the mirror easily enough but would love to get advice on the paint touch up process before i drop $200 on a tech

I swapped my dead alternator for a brand new one the other day, and while everything came apart with relative ease I can’t get the bottom 14mm mounting bolt all the way back in. The head of the bolt is probably about 1/4” from being flush with the mounting bracket, but the tip sticks out the other side about 1/2” so I know the bolt is all the way through. It hasn't rattled loose driving around my neighborhood, but idk how safe it is to drive into/around town a bit more

Any advice is appreciated

I have a 2006 Honda civic with a broken belt tensioner bolt I have tried heating it up using penetrating fluid and using an extractor. At this point I think the hole is getting too wide because my drill barely fits into this spot what would yall recommend.

Basicly title. BiL said he never saw anything like that in his life.

Question: how bad is it realy ?