Recent Topics
Oil residue in exhaust tips after oil change
by jjgen13
12/21/14 02:09 PM
How can you tell if your car has flat-tappets?
by OceanRuns
12/21/14 01:43 PM
Sick coworkers Insisting on Coming to Work.
by tom slick
12/21/14 01:20 PM
Can't Reach Spark Plugs
by Nick1994
12/21/14 01:00 PM
95/96 eagle vision
by Clevy
12/21/14 12:54 PM
NM....please delete
by GatorJ
12/21/14 12:21 PM
Quick Way of Flushing PS Fluid
by Mter00s
12/21/14 12:18 PM
When to grease
by Dallas69
12/21/14 11:05 AM
Autozone has Castrol GTX SynBlend Oil $1/quart
by dmiko
12/21/14 10:59 AM
Another wheel torque question......Charge
r

by Blue_Goose
12/21/14 10:29 AM
02 Ford 4.6 timing chain guides
by swirlparanoid
12/21/14 10:29 AM
Best Family Hatch for 21k or under
by wn1998
12/21/14 09:17 AM
Newest Members
twspalm, phatford, howie2092, Riceman67, Mradley
52253 Registered Users
Who's Online
104 registered (1bioguy, 29662, aa1986, Adamr955, 1kickbuttranger, 3800Series, 9 invisible), 1593 Guests and 211 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
52253 Members
66 Forums
223750 Topics
3548451 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3073705 - 07/23/13 06:58 AM Clear Synthetic 75w/90 Gear Oil???
saltedleech Offline


Registered: 07/22/13
Posts: 6
Loc: mi
I am hoping someone can help answer my question. Yesterday I was changing the rear diff. fluid on my '03 Tahoe.

Having never used "Synthetic" Gear Lube before I didn't think anything of it when I began pooring in the new fluid. I purchased it at Advanced Auto and was using their brand.

Since I was teaching my son and explianing how you can smell "burnt" fluid and see the viscocity between your fingers. I was surprised that the new oil was clear but it had/has the proper smell and viscosity.

After pooring in 2 quarts and begging to poor in the third my son hsaid, "Dad its Yellow". I immediately stopped. The color of the third quart is what I would have expected, having used synthetic engine oil since the '80's.

Does anyone know if the clear oil is OK??? I went back to the store and they gave me (2) new quarts and both of them are the common "yellow" color??

Thank you for your help

Top
#3073732 - 07/23/13 07:31 AM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
danthaman1980 Offline


Registered: 03/12/10
Posts: 711
Loc: SE Wisconsin
I've never seen 'clear' gear oil...

If it were mine - having just poured in 2 quarts of clear gear oil, and all the new quarts being the more normal yellow color, I would question the quality of the store brand gear oil. I would dump the clear oil, buy 3 quarts of a different brand, and start over. Stick with a major brand like Pennzoil, Valvoline, Mobil, Castrol, etc.
_________________________
2003 Chevy Silverado 1500 5.3 LS Quadrasteer ~215,000 miles; PU SM 5W-30/Fram Ultra

2014 Mazda6 Sport 2.5 Skyactiv ~19,000 miles; Mazda w/Moly 0W-20

Top
#3073735 - 07/23/13 07:36 AM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
Zaedock Offline


Registered: 09/10/05
Posts: 3852
Loc: Massachusetts
It was probably a different batch. Oil color, even the same brand, can vary.

I believe (and someone correct me if I'm wrong) that Advance gear oils are made by Warren Unilube, who makes decent auto fluids.



_________________________
2012 F150 Ex-cab 5.0L/2004 Malibu Maxx LT
1992 YJ "The Heep"/1994 Olds Cutlass Ciera 3.1/auto
1975 Ford Bronco/1959 Willys CJ5/20XX Custom rock crawler

Top
#3073746 - 07/23/13 07:52 AM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
JethroBodine Offline


Registered: 07/19/13
Posts: 449
Loc: Ohio
The GM grape scented 75w90 specified for your truck is almost clear.

Top
#3073751 - 07/23/13 07:54 AM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
Roadkingnc Offline


Registered: 07/16/11
Posts: 632
Loc: NC USA
vI have seen clear gear oil, don't worry about it

Top
#3073764 - 07/23/13 08:07 AM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
saltedleech Offline


Registered: 07/22/13
Posts: 6
Loc: mi
I still need to "top Off" the fluid

So you dont think Mixing the two should matter?

Top
#3073768 - 07/23/13 08:11 AM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
JethroBodine Offline


Registered: 07/19/13
Posts: 449
Loc: Ohio
Originally Posted By: saltedleech
I still need to "top Off" the fluid

So you dont think Mixing the two should matter?


No not at all. The color in most oil is dye.

Top
#3073771 - 07/23/13 08:14 AM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
saltedleech Offline


Registered: 07/22/13
Posts: 6
Loc: mi
Thank you, Oil is cheaper than a new rear end.

I will top it off and run with it.

Top
#3073778 - 07/23/13 08:23 AM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
Zaedock Offline


Registered: 09/10/05
Posts: 3852
Loc: Massachusetts
thumbsup
_________________________
2012 F150 Ex-cab 5.0L/2004 Malibu Maxx LT
1992 YJ "The Heep"/1994 Olds Cutlass Ciera 3.1/auto
1975 Ford Bronco/1959 Willys CJ5/20XX Custom rock crawler

Top
#3073852 - 07/23/13 10:05 AM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
dnewton3 Offline



Registered: 05/14/07
Posts: 5717
Loc: Indianapolis, IN
Many oils have a dye added to color them to some tolerable and desireable market perception.

I would think it's OK to use; it's likely the color was simply a bit "off".
_________________________
Conventionals vs. Synthetics isn't about which is "better"; it's about which lasts longer, while assuring safe operation, in relation to cost. Any product can be over or under utilized. The same applies to filters.
Make an informed decision; first consider your operating conditions, next determine your maintenance plan, and then pick your lube and filter. Don't do it the other way around ...

Top
#3074003 - 07/23/13 01:41 PM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
MolaKule Offline


Registered: 06/05/02
Posts: 14784
Loc: Iowegia
Quote:
After pooring in 2 quarts and begging to poor in the third my son hsaid, "Dad its Yellow". I immediately stopped. The color of the third quart is what I would have expected, having used synthetic engine oil since the '80's.


Was your son viewing it from a different direction or at a different angle under a different lighting situation than you?

Even with the clearest transparent base oils, the additives will give it a slightly yellowish, to honey-colored, to brownish color, and I mean a very light tinting.



Edited by MolaKule (07/23/13 01:47 PM)
_________________________
I can't wait to see what Movies North Korea will let me view this weekend. smile

Top
#3074010 - 07/23/13 01:47 PM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
saltedleech Offline


Registered: 07/22/13
Posts: 6
Loc: mi
It was/is clear like hydraulic or brake fluid. The "yellow" was what I would consider the normal color of differential fluid or heavy gear lube.

Top
#3074022 - 07/23/13 01:57 PM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
MolaKule Offline


Registered: 06/05/02
Posts: 14784
Loc: Iowegia
WPP and other large blenders use computer automated blending so this is highly unusual.

If there are any questions about it, save the fluids and have VOA's done.
_________________________
I can't wait to see what Movies North Korea will let me view this weekend. smile

Top
#3074054 - 07/23/13 02:35 PM Re: Clear Synthetic 75w/90 Gear Oil??? [Re: saltedleech]
MetalSlug Offline


Registered: 07/24/10
Posts: 2186
Loc: vicksburg ms
I alway shake the bottle up really good wink . I seem valvoline clear oil before
_________________________
2014 Black Chevrolet Silverado 1500 Z71 LTZ Crew Cab 4wd 5.3L 8cyl 6A 200 miles ( Dealer oil and filter ). coffee

Top