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Your cart is empty.Max gear is recommended for use in truck and automotive front or rear differentials, manual transmissions and lower gear units of marine engines that specify use of an api GL-5 or GL-4 fluid. It is non-corrosive to soft yellow metals (brass, bronze, copper, etc.) and synchronizer safe. Specially designed to extend gear and bearing life, max gear provides superior corrosion protection over competing conventional and synthetic gear oils.
Linda Bledsoe
Reviewed in the United States on July 22, 2024
Good product. Fixed my A833 4-speed shifting problem. Smooth shifts now.
Cecilia R.
Reviewed in the United States on July 16, 2024
The case of six Royal Purple gear oil quarts was perfect for changing the oil in my Chevy truck differentials. Good value on quality gear oil.
JOSEPH SACK
Reviewed in the United States on June 5, 2024
Use this in everything improves fuel mileage and performance enough to notice.
MH
Reviewed in the United States on June 16, 2024
Definitely a great product. I have 150k on my front/rear differentials and no problems. Change fluid every 30k. Highly recommend.
pete
Reviewed in the United States on June 13, 2024
Great quality product for rear end differentials.Could tell the difference as soon as I started to drive vehicle.
Frank
Reviewed in the United States on February 23, 2024
I start off by saying I’m a diehard Royal purple fan it has proven time and time again it is superior over Mobil 1 and cheaper brands this gear oil is not any different really quiets down the gears and helps reduce vibration and for the price you can’t beat it
Customer
Reviewed in the United States on December 24, 2024
Excellent lube, great price..
Gilbert M.
Reviewed in the United States on October 7, 2024
Excelente producto muchísimas gracias
Chris S.
Reviewed in Canada on December 8, 2018
As expected and great price!
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