Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - why is gearbox oil mod listed as large improvement in the 65+ mods

Christ · 01-14-2009, 10:00 PM

Obviously you wouldn't do that in your street car - but it is a great indication of exactly how much of a gain you can get from running lighter oil or synthetic "low-drag" oil in place of your OEM oils.

To add to that - try just changing the fluids... lots of times, they don't get changed for the 140+ thousand miles that are on the vehicle... and while it may not hurt the components on a normally driven vehicle (not beat on), it most certainly will affect FE negatively... crud and gunk build up create more friction in the parts, meaning more resistance to movement...

Even if you don't want to use a lighter fluid, just change it out for the OEM fluid, at least.

01-14-2009, 10:00 PM	#13 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,382 Herbie - '86 Golf Diesel 90 day: 51.89 mpg (US) Steve - '92 Festiva Thanks: 955 Thanked 324 Times in 273 Posts	Obviously you wouldn't do that in your street car - but it is a great indication of exactly how much of a gain you can get from running lighter oil or synthetic "low-drag" oil in place of your OEM oils. To add to that - try just changing the fluids... lots of times, they don't get changed for the 140+ thousand miles that are on the vehicle... and while it may not hurt the components on a normally driven vehicle (not beat on), it most certainly will affect FE negatively... crud and gunk build up create more friction in the parts, meaning more resistance to movement... Even if you don't want to use a lighter fluid, just change it out for the OEM fluid, at least. __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"