Recent Topics
Menards Formula Shell
by Duffyjr - 09/20/19 05:35 AM
Best Nubuck protector/waterproof

by PW01 - 09/20/19 04:14 AM
Aircraft Tempest Spin-EZ AA-48108-2
by Capt - 09/19/19 11:22 PM
Emission Readiness monitors
by bowlofturtle - 09/19/19 10:12 PM
Thoughts on the GM strike?
by Vern_in_IL - 09/19/19 09:37 PM
tropical storm imelda blows up everynight?
by motor_oil_madman - 09/19/19 09:12 PM
2017 Corvette / Mobil 1 ESP 0w40 / 5.2k mi
by dparm - 09/19/19 08:57 PM
2019 Lexus UX 250h
by Direct_Rejection - 09/19/19 08:56 PM
Gas theft
by tahoe_hybrid - 09/19/19 08:04 PM
Aisin 09G transmission fluid?
by sloinker - 09/19/19 07:44 PM
Oil for 2005 BMW X3
by Nyquist - 09/19/19 07:34 PM
Golden Eagles Take Down Deer and Wolves
by buster - 09/19/19 07:31 PM
P21S Windshield Washer Booster
by mclasser - 09/19/19 06:30 PM
Why warm up oil before a UOA sample is taken?
by paulri - 09/19/19 06:21 PM
Selling the 97 Camry V6 again
by PandaBear - 09/19/19 05:15 PM
FRAM Orange Cans
by KevGuy - 09/19/19 05:13 PM
Newest Members
Jeojevero, Repertech, Bluttoboy, Srfridd, V1313
69336 Registered Users
Who's Online Now
69 registered members (bernau, atikovi, aquariuscsm, 4WD, avi1777, 53' Stude, 7 invisible), 1,072 guests, and 27 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Most Online3,532
Jul 30th, 2019
Donate to BITOG
Print Thread
Hop To
Why no love for M1 gear oils? #5191358 08/19/19 03:02 PM
Joined: Nov 2013
Posts: 374
zuluplus30 Offline OP
OP Offline
Joined: Nov 2013
Posts: 374
Searching the threads I see lots of negativity towards M1 gear oils (not Delvac). Anybody care to shed some light? Getting ready to change my Silverado again w/ G80 locker and already purchased M1 75w90 for the job.

Re: Why no love for M1 gear oils? [Re: zuluplus30] #5191369 08/19/19 03:15 PM
Joined: Oct 2010
Posts: 7,533
A_Harman Offline
Joined: Oct 2010
Posts: 7,533
I did a complete fill of M1 75w90 (7 quarts) in the Dana 80 in my Dodge. Even though the bottles said that it was for limited-slip differentials, the rear end would chatter in tight slow-speed turns. So I bought the LS additive separately; 2 4-oz bottles and problem solved. On other fills I have used Walmart Supertech, and didn't have a problem with limited-slip chatter. So I avoid M1 gear oil.

1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck
Re: Why no love for M1 gear oils? [Re: zuluplus30] #5191389 08/19/19 03:35 PM
Joined: Jun 2002
Posts: 20,361
MolaKule Offline
Global Moderator
Global Moderator
Joined: Jun 2002
Posts: 20,361
Sorry guys, these "No Love" threads just create ridiculous bickering.

The value of a scientific theory is its ability to prompt further study, not that it has any relation to the established facts of scientific reality.
Previous Thread
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™