I am changing the front differential fluid in my 2017 Silverado, 1500 using AC Delco 75W90 oil.,
Dealer Price is $45/Qt
Amazon Price is $20/Qt.

Are they really the same product? That is too much of a difference to not raise concerns.
Does anyone know the details of what Amazon is doing to offer such a low price?

Thx

KC

 

I wouldn't bother with the GM diff fluid. I've always used The Mobil 1.
At Autozone. Mobil 1 75W-90 Synthetic Gear Oil 1 Quart - $18.99

My 06 has the Mobil 1 synthetic fluids in the front and rear diffs, engine, transmission.
I do use the GM transfer case fluid as it's an odd fluid.

Over 150K miles. Including towing. All drivetrain is still original. It doesn't burn oil between changes either.

 

Aug2024 - From Amazon - Eight new Delco spark plugs (each plug boxed) eight per order-quantity.
Each marked "made-in-chine". ( No sign of "AC" ???)
The odd 9-box package ? remember Amazon picking/packing/etc is robotic.
Next question, click, clank, buzz, buzz.