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Weird Oil Leak

NotApplicable

Limited
Well-known member
Joined
Dec 9, 2025
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4
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Location
WA, USA
Vehicle(s)
4Runner, IONIQ 9, Sprinter
I’ve yet to notice anything like this on my 4Runner, but my sprinter leaked oil/melted wax looking stuff from inside body panels. It’s cavity wax in the case of sprinters, maybe something similar for the 4Runners!
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4cyl_runner

TRD Off-Road
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First Name
Rick
Joined
Nov 20, 2025
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54
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Location
Arizona USA
Vehicle(s)
Tacoma TRD OR, 2026 4Runner
Dealership said it's some type of anti-corrosion costing they apply to the inner panels during manufacturing. If you live south like I do, when it gets real hot that stuff really thins out and starts dripping.
I live in Arizona, and we currently have 3 digits temp... at least it's not engine or tranny oil.
 
 







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