Has anyone ever used the Walmart brand 75/140 full synthetic gear oil? Is that oil ok?

 

What is the brand name gear lube oil that Walmart carries and what does it cost? I usually do not like getting engine or gear lube oils from stores also handling all types of other discounted merchendise, unless it is a brand name high quality lubricant. Those stores at times sell low end products, so you have to watch what you are getting. I use Amsoil Severe Gear 100% Synthetic EP Lubricant GL-5 75W-90, but they also have that severe gear lube oil in 75W-140 weight. In my transfer case and G56 transmission I have Amsoil ATF+4. I do not mind paying extra for a top quality product as those gear lube oils are not changed that often.

 

My self I use Amsoil 75/90 gear oil. FYI, Amsoil now has 75/110 gear oil for those who don’t need the heavy duty 75/140. Anyway why would you buy a $40,000.00 truck and then want to put 2-bit gear oil?

 

It is worth the few extra bucks for a quality oil!! With all the miles I got no need to chance it so save a few bucks!! I have used mobil 1 syn. in the rear and have never had a rear end problem of any kind!!! Plus a good synthetic trans fluid and the babys is still going!!!

 

The factory fill is synthetic. I doubt the WallyWorld fluid is. So your gonna put Grocery store rearend fluid in your 40,000 dollar truck. I don't think so. At least get Mobil 1 Syntec 75W/90. I would not recommend WallyWorld fluid at all in any vehicle unless it burned more oil then fuel.

 

I disagree with the majority here. Although I use Mobil 1 75w90 with no issues............I don't think he will have any problem running the Walmart stuff. He is probably talking about Supertech brand of oil/fluids.

If the gear oil is Synthetic GL-5 rated gear oil.......of any brand, he should be fine as long as he changes it somewhat regularly.


It is getting almost to the point now with the oils and their additive packages that they are almost all the same and not much difference between the "good" stuff and the "cheap" stuff.

This ain't your Father's oil or gear oil anymore.

 

I agree totally with you.

Just make sure it says synthetic on the label. Even if it's a regular fluid or oil if it says synthetic then by manufacturing process it's a better fluid or oil. If you look on some of these so called synthetic oil websites and check out their products you will see they say synthetic oil but hardly any of their products say 100% synthetic in writing. They will tell you that in person or on the phone but not in writing. Leaves me to beleave there not all faithful either.

 

Even with the synthetic oil, isn't there an additive that needs to be added for the LS versions. I am getting ready to change mine and was just curious.

 

Here is what the manual says for my '05 hope it helps you out!


FRONT AXLE
C205F - MoparT Gear Lubricant 75W-90
9 1/4 AA - MoparT Synthetic Gear Lubricant 75W-90
9 1/4 AA EL- MoparT Synthetic Gear Lubricant 75W-90
REAR AXLE
9 1/4 - MoparT Synthetic Gear Lubricant 75W-140
10 1/2 AA - MoparT Synthetic Gear Lubricant 75W-90
10 1/2 AA EL- MoparT Synthetic Gear Lubricant 75W-90
11 1/2 AA - MoparT Synthetic Gear Lubricant 75W-90
248RBI - MoparT Gear & Axle Lubricant SAE 90

NOTE: Trac-LokT differentials require Limited Slip Additive in the lubricant. Trac-Rite™ / Trac-Rite EL™ differentials
DO NOT require Limited Slip Additive.

 

Run a good oil and change it every 50k and don't worry about it. Most vehicles come from the factory with synthetic in the differentials and don't require a change until 100k. If your towing exceptionally heavy every day, thats a different thread and a heavier oil and possible more capacity.

 

FYI, for severe service you must change the gear oil every 30K and not 50K like you stated, being the original poster has a 2006 truck. BTW if you do any towing then you should use the severe service schedule for your truck.

 

Read the NEW issue of TDR Magazine. It's got a great section on evolution of motor oils and additives. I think you will all be amazed and it my change your view on the major brands. I still would like to know why the factory diff oil looks like CRUD even at 5,000 miles. I use Royal Purple 75w/140w in my diffs.
I recently looked at the Wally brands and I would bet that the stuff is as good as any.

 

rockdonon, I was also wondering about the factory differential lube oil that drained out of my 2005 diffs at 1,431 miles. It looked like someone had added into the diffs one half quart of of water and the remaining oil part looked like crud. I have had seven trucks that I changed lube oil in the rear ends and never have I seen such puke from a new truck that never went through water deeper than a thunder storm on black top. I would not buy Mopar diff lube for anything I own and if I purchase another DC vehicle I will for sure change the diff oil as soon as possible. I just hope they are not putting second grade stuff in new vehicles so they can save a few bucks on each vehicle. I changed my engine oil at the same mileage but it was fine as was the tranny and transfer case fluid that I also changed.

 

I was told by a guy working the automotive dept. at WalMart that the SuperTech brand was Quaker State relabeled. They also have synthetic available. Is it as good as other brands? Possibly not but I'm pretty sure that it's not that bad either.

 

Well I agree about quality fluids that is the life line of an engine and drivetrain!! I changed all my fluids at 100,000 miles and went back with mobil 1 in the tranny and in the rear.

I left the stock stuff in for the whole time of the 100,000 and when I changed it, it was fine. Nothing was low and checked old oil with a heavy duty magnet and there wasnt that really anything to excessive in it!

So far with well over 250,000 on my '05 I have had no rear end problem or tranny problem!