Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Redline MT-LV 70W/75W gear oil for 5 speed manual Mirage (OE is 75W80)

Stubby79 · 12-18-2018, 11:50 AM

Bit off topic...but why do they rate the thickness of engine oil different from the manual trans oil? I'd have assumed, based on the numbers, that 75w is a heck of a lot thicker than 10w.

12-18-2018, 11:50 AM	#10 (permalink)
Stubby79 Master EcoModder Join Date: Sep 2012 Location: Victoria, BC Posts: 1,747 Firefly EV - '98 Pontiac Firefly EV 90 day: 107.65 mpg (US) Little Boy Blue - '05 Toyota Echo 90 day: 33.35 mpg (US) BlueZ - '19 Nissan 370Z Sport 90 day: 17.19 mpg (US) Thanks: 75 Thanked 577 Times in 426 Posts	Bit off topic...but why do they rate the thickness of engine oil different from the manual trans oil? I'd have assumed, based on the numbers, that 75w is a heck of a lot thicker than 10w.