Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now

Reply  Post New Thread
Submit Tools LinkBack Thread Tools
Old 02-19-2009, 11:21 AM   #1 (permalink)
home of the odd vehicles
rmay635703's Avatar
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,496

Silver - '10 Chevy Cobalt XFE
Thanks: 396
Thanked 742 Times in 557 Posts
Moly Gear Oil Additive Sources? Redline MTL or ???

I am looking at reducing the weight of the rearend differential grease and the weight of the oil in the manual transmissions of both my Subaru 360 and my fathers Miles ZX40, the ZX40 calls for SAE80 weight oil in the tranny, not sure of anything other than Redline MTL that would be similar.

Anyway I cannot locate a reliable source of moly oils or moly oil addivitives, I ended up buying a bunch of old QX-700 moly additive for the crank but was told it works in the rearend differential as well, I was not told I could add it to a manual transmission. I would like to find some Moly alternatives! If anyone knows of any please share, I have been told it is common knowledge that moly improves rolling resistance on the DIY electric forum, yet good luck finding it. ALso on the subaru 360 many members of the subaru group use some type of moly oil, I would assume SAE 80 is also the proper tranny oil for it as it is the type called out for the miles kei car tranny but I might play it safe depending on the feedback from the subaru group.

Anyway I am testing amsoil severe gear in my automatic dodge 1500 crewcab w/ topper along with moly in both the rearend and crankcase. My initial set of 105mile ABA tests show about a 3/4MPG increase going out and a 2mpg increase coming back from the lifetime highway average of 14.7mpg (yes I have many ABA tests on this route and yes the mileage on this thing sucks) Main issue is that temperatures vary along with wind along the route, oddly my after oil/gear oil change ABA test was during colder than normal weather and there was head and side winds. I drove (for me) normally varying from 40-65mph depending on how the wind and slant was. There are 4 "in town" sections all above 35mph meaning about 15 miles in town on the route and 5 stops.

Not as good as I was hoping, now that I am laid off it is unlikely I will be able to get too many more ABA tests on that route, AH well

Thank You for any moly suggestions

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

Old 02-19-2009, 02:58 PM   #2 (permalink)
Master EcoModder
vtec-e's Avatar
Join Date: May 2008
Location: Ireland
Posts: 507

De Yaris - '04 toyota yaris T2
90 day: 69.55 mpg (US)
Thanks: 111
Thanked 32 Times in 22 Posts
I got some molykote from work and put it into my gearbox. This was before i got my scangauge so i couldn't say what the FE benefits were. But i'm sure it helped.
Here's a link to the company that makes it (among other products)
Product Finder

  Reply With Quote
Old 02-22-2009, 06:38 AM   #3 (permalink)
EcoModding Alien Observer
suspectnumber961's Avatar
Join Date: Mar 2008
Location: I flitter here and there
Posts: 547

highcountryexplorer - '86 Nissan 720 KC 4x4 ST with fiberglass cap
90 day: 21.78 mpg (US)

Elroy - '03 Ford Focus ZX3 w/Zetec DOHC engine
90 day: 32.89 mpg (US)
Thanks: 6
Thanked 78 Times in 65 Posts

Main Index 2003

It's what I use...might find a better price? Used by Bimmer types.
  Reply With Quote
Old 03-07-2009, 02:00 PM   #4 (permalink)
Master EcoModder
aerohead's Avatar
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 12,796
Thanks: 20,520
Thanked 6,308 Times in 3,907 Posts

The molydenum disulfide additives were very popular 30-years ago but not much said about it now.The moly did show some measurable improvement,but most research has centered around viscosity reduction and synthetics.Transmission gears undergo tremendous pressure at their interface with other gears and its very important that a lube of lower viscosity be able to handle loads your tranny will see,or they will experience "asperity",where the oil is literally squeezed out between them,allowing momentary contact-welding and fracture,leading to rapid wear and failure.Be very carefull with that $3,000 gearbox!

  Reply With Quote
Reply  Post New Thread

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Effect of gear oil viscosity on transmission efficiency (Metro owners take note) MetroMPG EcoModding Central 44 12-08-2014 11:22 PM
Saturn S-Series 5th Gear Swap cfg83 EcoModding Central 61 05-02-2012 09:31 PM
Article: Crude oil is getting cheaper so why isn't gas? Frank Lee The Lounge 20 07-14-2010 01:06 AM
Larger oil filter for better FE? Gregte DIY / How-to 44 05-22-2010 11:12 PM
Low viscosity and/or synthetic gear oil? Dane-ger EcoModding Central 7 01-13-2008 07:58 AM

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com