Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Story of a custom 5th gear for a '98 Ford Escort ZX2: +6% MPG

janvos39 · 09-01-2009, 02:44 PM

Diesel John.
Gears in a gearbox can be of the same material. The lubrication of the gearbox is the separator between the contacts on the teeth. In dry condition indeed to choose different materials is best to avoid fretting corrosion.

09-01-2009, 02:44 PM	#8 (permalink)
janvos39 EcoModding Apprentice Join Date: Jan 2009 Location: Belgium Posts: 159 jvsgears - '14 Skoda Octavia Team m8 90 day: 52.47 mpg (US) Thanks: 22 Thanked 38 Times in 28 Posts	Diesel John. Gears in a gearbox can be of the same material. The lubrication of the gearbox is the separator between the contacts on the teeth. In dry condition indeed to choose different materials is best to avoid fretting corrosion.