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Heinz · 07-27-2021, 08:09 PM

Whale oil, like petroleum oil, came in many grades and weights.
If we are talking about the early 20th century many grades of mineral oil, aka petroleum oil, were available. Whale oil and refined fish oil were used for some special applications.

07-27-2021, 08:09 PM	#5
Heinz User Join Date: Jun 2002 Location: Greenville SC Posts: 1,004 Thanks: 377 Thanked 410 Times in 180 Posts	Whale oil, like petroleum oil, came in many grades and weights. If we are talking about the early 20th century many grades of mineral oil, aka petroleum oil, were available. Whale oil and refined fish oil were used for some special applications.