Recent Topics
Powerstroke 6.0 Oil Cooler Replacement
by DoubleWasp
Today at 12:50 AM
blower smoking only at full throttle?
by motor_oil_madman
Yesterday at 10:32 PM
Euro cartridge filters - o ring tip
by CharlieBauer
Yesterday at 09:37 PM
Pre fill diesel oil and fuel filters?
by OneEyeJack
Yesterday at 08:32 PM
Which is better?
by dnsio
Yesterday at 08:23 PM
Thinking of buying a 2013 cx-5, anyone got one?
by FLORIDA
Yesterday at 07:58 PM
Larger diameter oil filter
by dnsio
Yesterday at 07:42 PM
Cardone Magnapure filters
by greasegunn
Yesterday at 07:11 PM
-25c this morning, vehicle will not start
by Barwich
Yesterday at 06:12 PM
Well I got the LTX M/S today
by Realtech214
Yesterday at 05:43 PM
Very good book and influential person
by car51
Yesterday at 05:28 PM
Homemade pizza
by car51
Yesterday at 05:24 PM
Newest Members
MrHappy333, omniz, NickMc, Bear0422, pdl2mtl90
59832 Registered Users
Who's Online
32 registered (Black, bbhero, Boczech, carlprop, akela, bmwjohn, 1 invisible), 626 Guests and 16 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
59832 Members
66 Forums
258115 Topics
4247282 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: 940
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 ~226,000 miles; M1 0W-30

2014 Mazda6 Sport 2.5 Skyactiv ~35,000 miles; Mazda/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: 3913
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.



_________________________
2016 KIA Optima SXL 2.0L Turbo/2012 F150 Ex-cab 5.0L
1992 YJ "The Heep"/2004 Malibu Maxx LT
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: 720
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: 3913
Loc: Massachusetts
thumbsup
_________________________
2016 KIA Optima SXL 2.0L Turbo/2012 F150 Ex-cab 5.0L
1992 YJ "The Heep"/2004 Malibu Maxx LT
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: 6367
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: 17595
Loc: Iowegia - USA
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)
_________________________
Did you ever wake up, kiss the person beside you, and be glad that you were alive? I just did and they won't let me fly on this airline anymore. 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: 17595
Loc: Iowegia - USA
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.
_________________________
Did you ever wake up, kiss the person beside you, and be glad that you were alive? I just did and they won't let me fly on this airline anymore. 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: 2488
Loc: vicksburg ms
I alway shake the bottle up really good wink . I seem valvoline clear oil before
_________________________
2016 Nissan Titan XD Dealer oil + Nissan 15208-9E01A Oil Filter. Love this truck.

Top