this post was submitted on 19 Sep 2026
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Technology
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Plastic oil pans save weight, who even uses metal anymore?
The only time I ever got a hole in an oil pan was a metal one and it was my ex who somehow hit a rock and hid it from me. The one car I had with a plastic pan never had any issues, but it also had a skid plate that makes a larger difference than the material of the oil pan itself, since loose debris would just bounce off. Plus the skid plate helps reduce wind resistance so it's a necessity in this day and age anyway.
There are always trade-offs. All polymers deteriorate when exposed to that kind of thermal cycling and chemical exposure. A metal alloy fit for the job can last forever.