Engine charcoal and spark plug bonks

junkyardhero said

we going old skool. fill it with diesel and a few quarts of ATF, let that bad boy idle for 'bout half an hour. that'll sort it right on out.

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I did that about 40 years ago to a 350sbc in a 70 impala I bought for $100.
The oil light would come on at idle when it was hot.
That and a swirling blue cloud following you everywhere.

After the doooshing, and a couple of oil changes, it was fine.
I drove it for a few years and then ended up selling it for $500.