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A comment on Lead is even deadlier than was feared. Parent comment

Re:Lead is even deadlier than was feared by newnewpdro on Sunday March 18, 2018 @12:45PM (#16612790)
This is correct, but it's also been overstated how important the lubricating properties of leaded gasoline were in these engines - while the harmful health effects were understated. [1]

[1] www.walshcarlines.com/pdf/mechanicalimplications.d4e.pdf

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Re:Lead is even deadlier than was feared by olivermarks on Monday March 19, 2018 @12:49AM (#16616239)
I've found it varies by engine type. International Harvester light line SV engines for example definitely benefit from lead additives to fuel. Zinc additives in oil is another 'be kind to your engine' additive https://zddplus.com
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