Any reason not to use Valvoline synthetic 75w-90?

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I really like the flexible squeezable bottles. I think AMSOIL started that but Valvoline offers that now too and it's in stock locally and half the price.

Any reason I shouldn't use the Valvoline gear oil in the front and rear diffs on my 04 Trailblazer? I swear I recently read a thread on here that Valvoline gear oil tested very badly in some testing comparison, so I'm a little hesitant.
 
I have been using quart bottles with the pump for years. I get a pump from Amazon and have it dedicated, keep in zip lock when not in use.

The pouches are a neat idea, but my old methods never let me down. I also put on a longer clear vinyl hose for some of the needed applications that I think the pouches would even be a struggle to use.

So I am not swayed by the pouch.

Valvoline is a solid product.
 
I have used a bit of it for my fleet and have several quarts more on the shelf at the ready. Its the more budget friendly 75w90 available next to Supertech which is also excellent.
 
I really like the flexible squeezable bottles. I think AMSOIL started that but Valvoline offers that now too and it's in stock locally and half the price.

Any reason I shouldn't use the Valvoline gear oil in the front and rear diffs on my 04 Trailblazer? I swear I recently read a thread on here that Valvoline gear oil tested very badly in some testing comparison, so I'm a little hesitant.
That claim sounds like either an urban legend or a troll post.
 
I have used Valvoline 75W-90 gear oil in several rear diffs and a few transfer cases. Prefer the pump method. Never a problem. Valvoline makes good products.

Smells just as rank as the more expensive lubes.
 
I really like the flexible squeezable bottles. I think AMSOIL started that but Valvoline offers that now too and it's in stock locally and half the price.

Any reason I shouldn't use the Valvoline gear oil in the front and rear diffs on my 04 Trailblazer? I swear I recently read a thread on here that Valvoline gear oil tested very badly in some testing comparison, so I'm a little hesitant.
@Pablo Unless another more recent test has been done, Amsoil did a KRL 20 hour shear stability test in 2007 of about 14 gear oils and Valvoline SynPower 75W90 faired well in comparison, but this was only one test which showed a before and after viscosity change comparison.

Gear Formulations have changed since then.

Here is a similar discussion:

https://bobistheoilguy.com/forums/threads/hpl-differential-life.381572/#post-6992647
 
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I just went from motul gear 300 to valvoline full syn (flex fill bags) in my gx460 diffs. Used Valvoline in a subaru diff previously. Is Motul or Amsoil better? Probably, but for my driving type (mostly highway and around town) think the Valvoline or Mobil will do just fine.

I have a doge myself 🐕. She approves all my fluids for my gx460. Rides shotgun.
 
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I really like the flexible squeezable bottles. I think AMSOIL started that but Valvoline offers that now too and it's in stock locally and half the price.

Any reason I shouldn't use the Valvoline gear oil in the front and rear diffs on my 04 Trailblazer? I swear I recently read a thread on here that Valvoline gear oil tested very badly in some testing comparison, so I'm a little hesitant.

It’s like $15/qt at Walmart. I’ll stick with Delvac and save $5/qt
Napa has a gallon jug for $32 or so on sale this month. Get 1 flex fill bag if you don’t want to use a pump. Amazon had flex fill bags 4qts for $44 the other day. I paid 6.99 in 2015 per quart for valvoline 75w90.

Delvac is excellent too. I had a gallon a while back.
 
I really like the flexible squeezable bottles. I think AMSOIL started that but Valvoline offers that now too and it's in stock locally and half the price.

Any reason I shouldn't use the Valvoline gear oil in the front and rear diffs on my 04 Trailblazer? I swear I recently read a thread on here that Valvoline gear oil tested very badly in some testing comparison, so I'm a little hesitant.
I don't remember it doing anything anything exceptionally well or exceptionally bad. It did really good in the $ category.
 
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Those squeeze pouches are fun :D

Otherwise, there's the ST 75w90, but you'll need one of those pumps, which are also a good price at Walmart.
 
Only my own experience of using it in my Ranger and towing 6000# on a regular basis. Seems to be working fine. Little to nothing on the magnet when I do a D&F.
 
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