Recent Topics
5/32 enough for Winter?
by SumpChump
Yesterday at 11:52 PM
Noise from front wheel area
by weebl
Yesterday at 11:31 PM
Need advice.
by joyridin83
Yesterday at 11:06 PM
Amsoil SVG or Valvoline synpower 75w90
by donnyj08
Yesterday at 10:54 PM
Kia oil control valve
by Propflux01
Yesterday at 10:16 PM
Avalanche power steering cooler
by spasm3
Yesterday at 09:58 PM
Sharp 42" LED 1080p/120Hz - $299
by mrsilv04
Yesterday at 09:50 PM
brake squeak left turn.
by wrcsixeight
Yesterday at 09:40 PM
Sgt. Tamoressi released
by FL_Rob
Yesterday at 09:09 PM
Castrol Magnatec PDS.
by HappyLittlePony
Yesterday at 08:29 PM
snowblower 5w20 wt oil
by subaroo
Yesterday at 08:02 PM
Duralube
by bobbob
Yesterday at 07:07 PM
Newest Members
joyridin83, NH73, Blkflg, steam_soldier, Ben_SC
51763 Registered Users
Who's Online
41 registered (340_Magnum, Ben_SC, Bill_G, Blkstanger, 901Memphis, aquariuscsm, 5 invisible), 666 Guests and 183 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51763 Members
64 Forums
221498 Topics
3502730 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Page 1 of 2 1 2 >
Topic Options
#3460765 - 08/20/14 09:14 PM 2014 Silverado: now using 75w-85?? Amsoil question
zuluplus30 Offline


Registered: 11/23/13
Posts: 71
Loc: Kansas
Wife's 2014 Silverado just rolled 5k miles. I usually do a flush of the front and rear diffs and transfer case at this mileage for peace of mind. Apparently GM in a quest for CAFE standards is now using a proprietary 75w-85 GL-5 synthetic rear end fluid as opposed to the old standard 75w-90 grape juice. Any body know if the rear ends are carryovers from the previous years? I always use Amsoil SVG in both front and rears of my previous GM half tons. Should I stick with the 75w-85 GM fluid? Only other 75w-85 I can find is Redline but it's GL-4 so that a no go.

Top
#3460778 - 08/20/14 09:25 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
01_celica_gt Offline


Registered: 07/29/13
Posts: 857
Loc: St. Louis, MO
your wife has a truck? she is bad[censored]


Edited by 01_celica_gt (08/20/14 09:25 PM)
_________________________
01 Celica GT 1ZZ-FED(Rebuilt @ 186) Auto @ 203k
00 Celica GT-S 2ZZ-GE(Rebuilt @ 164k) Auto @ 171k
2ZZ-GE: CelicaBlend 0w20(3.0qt) + 0w40(2.0qt) = 5.0 qt

Top
#3460784 - 08/20/14 09:27 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: 01_celica_gt]
zuluplus30 Offline


Registered: 11/23/13
Posts: 71
Loc: Kansas
Lol she's a country girl. Nothing hotter than a country girl driving a killer truck. It's worth the price of admission.

Top
#3460806 - 08/20/14 09:42 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
01_celica_gt Offline


Registered: 07/29/13
Posts: 857
Loc: St. Louis, MO
that is awesome, cooler then a guy driving a truck.
lol i couldn't image my wife in a truck, she is only 5 feet tall...
But since getting her car she has become a somewhat of a bad[censored] driver though.
_________________________
01 Celica GT 1ZZ-FED(Rebuilt @ 186) Auto @ 203k
00 Celica GT-S 2ZZ-GE(Rebuilt @ 164k) Auto @ 171k
2ZZ-GE: CelicaBlend 0w20(3.0qt) + 0w40(2.0qt) = 5.0 qt

Top
#3460808 - 08/20/14 09:43 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
Greasymechtech Offline


Registered: 07/11/14
Posts: 402
Loc: Paradise of Florida
I use 75w90 in place of 75w85.
Price OE fluid at the dealer and tell them where to shove....

I'd use the Amsoil.
_________________________
At what point should a lurker start posting :-)

Top
#3460827 - 08/20/14 10:14 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
zrxkawboy Offline


Registered: 11/30/04
Posts: 1059
Loc: SD
I'd use a quality syn 75W90.
_________________________
"Think of all the Ford owners who will someday want an automobile." John Dodge


Top
#3460837 - 08/20/14 10:31 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
147_Grain Offline


Registered: 03/11/13
Posts: 1316
Loc: USA
Amsoil Severe Gear 75W-90 will likely equal or outperform the factory fill.
_________________________
2013 Subaru Outback Limited H6 AWD
2013 Toyota Corolla LE
2012 Toyota Corolla LE
2005 Dodge Neon SXT

Top
#3460867 - 08/20/14 11:20 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
oldhp Offline


Registered: 06/28/12
Posts: 841
Loc: Southern Illinois
I changed to RedLine 75W90 gear oil, guess what happened to MPG? Nothing.
_________________________
2014 RAM Express 3.6/8 speed work truck.
2012 Equinox 2.4-Wife's Ride


Top
#3460868 - 08/20/14 11:21 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
barkingspider Offline


Registered: 12/22/13
Posts: 388
Loc: socal
I would use OEM until the truck is out of warranty.
_________________________
99 supercharged Corvette
02 Chevy S-10
13 BMW 328i (wife)
95 Geo Prizm (daughter's)

Top
#3460874 - 08/20/14 11:43 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
901Memphis Online   content


Registered: 08/14/10
Posts: 6171
Loc: Northern Kentucky
Redline 75w90 is superior to the Gm stuff.
_________________________
1999 Ford Taurus 146k (Vulcan v6) - M1 High Mileage 5w30 | Fram Ultra XG 3600
2002 Buick Century 105k - Peak 5w30 / Fram Ultra XG 3980 / Filter mag

Top
#3460974 - 08/21/14 06:33 AM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: 01_celica_gt]
beanoil Offline


Registered: 10/17/04
Posts: 1979
Loc: Midwest, Illinois
Originally Posted By: 01_celica_gt
that is awesome, cooler then a guy driving a truck.
lol i couldn't image my wife in a truck, she is only 5 feet tall...
But since getting her car she has become a somewhat of a bad[censored] driver though.

OT, but my wife is 5'1" and she climbs right on up into the F350, drives to the storage area, hooks up the TT, and backs it into whatever campground she chooses. Now that is pretty BA, IMO. Back on topic, a syn 75w90 should do just fine.
_________________________
beanoil: Tough under heat, real dirty afterwards.

Top
#3461642 - 08/21/14 06:21 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: 01_celica_gt]
jk_636 Offline


Registered: 08/03/14
Posts: 383
Loc: Texas
Am I wrong in thinking that 75w-85 just seems a little light for a pickup? Especially if you plan on towing with it? The rear differential in my truck and others that I have looked at always called for a 75w-140 or something similar in the rear. As for the fluid, Amsoil Severe Gear or Royal Purple Max Gear would do the trick. thumbsup
_________________________
2006 Dodge Ram 1500 4.7 [Dino + Pureone]
2012 Ford Escape 3.0 [Royal Purple + Purolator Synthetic]

Top
#3461666 - 08/21/14 06:41 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: jk_636]
MolaKule Offline


Registered: 06/05/02
Posts: 14659
Loc: Midwest
Originally Posted By: jk_636
Am I wrong in thinking that 75w-85 just seems a little light for a pickup? As for the fluid, Amsoil Severe Gear or Royal Purple Max Gear would do the trick. thumbsup


If the gear lube has the proper GL-5 additive package (which I would assume it does), I don't see it as too thin.

New teeth hardening methods and tooth finishes allow a slightly thinner fluid.

A 75W85 is primarily for the benefit of fleet CAFE figures.

If you don't mind a very slight mpg hit, then my recommendation is to use a synthetic or a semi-synthetic in SAE 75W110.



Edited by MolaKule (08/21/14 06:43 PM)
_________________________
Blessed are those who walk away from you for they are making room for those who won't. smile

Top
#3462318 - 08/22/14 12:50 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
Ken2 Offline


Registered: 12/02/02
Posts: 6217
Loc: Washington St.
Quote:
Am I wrong in thinking that 75w-85 just seems a little light
An aircraft carrier uses 30 wt turbine oil in its 65,000 hp gears. It all depends on the design.
_________________________
Every gun that is made, every warship launched..a theft from those who hunger and are not fed, those who are cold and not clothed.
Gen. Eisenhower


Top
#3462567 - 08/22/14 06:33 PM Re: 2014 Silverado: now using 75w-85?? Amsoil question [Re: zuluplus30]
bdleonard Offline


Registered: 08/20/03
Posts: 27
Loc: Rome, NY
FYI, Redline sells a GL-5 75w85. It is in my rear diff right now.
Redline 75w85 GL-5

Top
Page 1 of 2 1 2 >