Piston Slap: It's Not You, Drain Plug…it's Me?

Seth writes:

Dear Sajeev,

I have terrible luck with oil drain plugs. Of the last 4 oil changes I’ve done, only one has been successfully completed in a single day, because I can never get the drain plug loose.

The culprits in these comedies of errors are a 1999 Saab 9-3 and a 2006 Honda Pilot. The first time I came across the stuck plugs, the Saab was a recent acquisition, and the Pilot had had its last oil change done at a local mechanic’s shop down the road. Therefore, I assumed that an overzealous shop jock who got trigger happy with an air gun was to blame. In the process of getting the plugs out, I managed to mangle the Saab’s bad enough to require the purchase of a new one, and should have also bought a new plug for the Pilot, too (but didn’t). When I reinstalled them, I put them in fairly snugly, but with the mindset that I didn’t want to get myself into this mess again.

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  • Scott I'm afraid of Clickbait, as it's so annoying..(And don't ask me about autonomous car clickbait)
  • ToolGuy Nice writeup. Good photography.
  • Detlump I almost bought a dark red one of these when I was cross-shopping Volvo wagons. I didn't like the frameless glass of the doors but it was a close call. I wanted a wagon for my hockey gear and also carrying parts as I was an engineer at the time. SUVs weren't a thing at that point and I wanted an enclosed, secure cargo area.I ended up going with a 95 850 wagon and it has served me well. The only time it left me stranded (temporarily) was when the coil wire popped off. I also got a flat tire, but I can't blame the Volvo for that. BTW, I still have the 950 with 263,000 miles - just changed the timing belt too - I have that process down to about an hour by now!
  • Wjtinfwb 18 year old Euro with admitted "issues". RUN from this money pit. My experience with European cars is time is more of an enemy than Mileage. I'd rather a 5 year old BMW with 120k miles than a 15 year old one with 50k. Electronics, wiring, plastics, exterior trim etc. just crumble with time, particularly if the car has lived in a harsh climate outside. I have folders of receipts from BMW, VW and Audi shops if you'd like to see the evidence of my thesis.
  • Wjtinfwb We too have a Subaru, a '16 Crosstrek. Aside from it's appetite for batteries (or crappy Subaru batteries), so far it's been a reliable ride, but from day one I've always thought it felt flimsy. I'm sure we'll get good service out of it and have no plans to replace it, but won't be surprised if it starts nickel and diming up as all those plastics and the electronics start to age.