I heard it from the actual owner, 2018 model he brought it in for an oil change and dealer noticed it was leaking and they resealed it under warranty, I don't think he really drives it too hard, just a cruiser with occasional acceleration, nothing overly crazy. Bagged on air suspension, shift ****, and wheels only mods. stock everything else. Maybe an instagram sticker here or there... It's a cruise/show car

 

FWIW, my IS F has significant track duty. The wife's GS F has zero track duty and LOTS of commute/long trip duty. Hers failed long before mine from a mileage perspective.

Last but not least, the specified sealant is used for coolant pumps on a wide range of Toyota products. We don't hear about those seals failing because they're running SLLC, and we do know for sure SLLC saves Toyota/Lexus money for the same reason they went to a "lifetime" ATF fill on their gearboxes with the WS fluid. It's EPA related, not technology related.

 

Has anyone tried the suckerpunch gasket? https://suckerpunchmotorsports.com/s...y-cover-gasket

 

No practical experience in this forum yet:

https://www.clublexus.com/forums/is-...ey-gasket.html

Lou