Re: Model A Hard to Steer
All about G4 and G5 gear oils can be found here: https://www.widman.biz/uploads/Transaxle_oil.pdf
The article says that modern G4 and G5 gear oils have a “deactivated or buffered sulfur” additive that does not attack brass or other soft metals. The G5 has about twice this additive than the G4. The problem with G5 in a synchonized transmission is that the additive does too good of a job attaching to the brass syncho parts and with impact the protective layer breaks away, carrying some of the brass with it. If there is no impact, such as bronze bushings, the G5 should not cause any problem.
The protective layer is grey or black in color and will wear away instead of the underlying metal. This significantly reduces the wear of the metal parts.
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A is for apple, green as the sky.
Step on the gas, for tomorrow I die.
Forget the brakes, they really don't work.
The clutch always sticks, and starts with a jerk.
My car grows red hair, and flies through the air.
Driving's a blast, a blast from the past.
Last edited by nkaminar; 01-22-2024 at 08:16 PM.
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