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JSeery · 06-15-2020, 02:51 PM

A lot of GL5 suppliers are now claiming they are yellow metal safe. Not sure I would trust them, but that is the claim. I stick with GL4 just to be on the safe side.

06-15-2020, 02:51 PM	#19
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: Transmission oil A lot of GL5 suppliers are now claiming they are yellow metal safe. Not sure I would trust them, but that is the claim. I stick with GL4 just to be on the safe side.