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AMSOIL 20W-50 100% Synthetic Hydrostatic Transmission Fluid
Product code : AHFQT-EA
- Fights wear for smooth, responsive operation
- Purpose-built to outperform motor oils
- Resists high heat and shear
AMSOIL 20W-50 100% Synthetic Hydrostatic Transmission Fluid
Synthetic, high-zinc formula fights wear. Built for hydrostatic transmissions to maintain mower speed and efficiency better than motor oil. Promotes long transmission life for professionals who depend on their equipment to make a living.
See the product data sheet for full details.
MAXIMIZES MOWER SPEED & RESPONSIVENESS
- Zinc-based additives fight wear to maintain motor-wheel tolerances and proper oil pressure.
- Resists viscosity loss in extreme heat for maximum mower speed and responsiveness.
COMMERCIAL-GRADE WEAR PROTECTION
- Forms a thick, durable film on gear teeth and other components to guard against metal-to-metal contact and wear.
- Resists mechanical shear and viscosity loss for excellent wear protection and long transmission life.
- Maintains protective viscosity despite extreme heat to ensure strong protection.
MAINTAINS CLEANLINESS
- Naturally heat-resistant synthetic base oils help reduce deposits.
- Promotes component cleanliness for peak efficiency and excellent performance season after season.
See the product data sheet for full details.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.
AMSOIL 20W-50 100% Synthetic Hydrostatic Transmission Fluid
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AMSOIL 20W-50 100% Synthetic Hydrostatic Transmission Fluid
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20-50By MATTHEW, a Verified Buyer on July 06, 2025Great oil. Never use any other brand. Thanks AMSOILWas this review helpful?
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Noticeable ImprovementBy JOHN, a Verified Buyer from Shannon, Georgia on June 27, 2025My zero turn had 1000 hrs and one side was significantly less powerful than the other and would not back up on an incline. I had to remove the units to drain the original oil as they were not designed for oil changes. I drained them and added Amsoil and it breathed new life into both sides after only a few minutes of driving. One side is still stronger than the other but both work significantly better and I’m hoping to get several more mowing seasons out of them now. I will be using this in all future zero turns and recommending it to my friends.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Hydrostatic transmission fluidBy TERRY, a Verified Buyer from Tennessee on June 11, 2025Replacement fluid for a John Deere lawn tractor has improved the operation and performance. This transmission runs very hot so hoping it will continue to operate during warmer summer temperatures to come. Fast shipping and good packaging.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Replacing Hydrostat FluidBy KEN, a Verified Buyer from Bloomdale, Ohio on May 30, 2025Great product! I replaced the fluid in my Simplicity zero turn and this was just the ticket. Amsoil has always been my go to for all my equipment.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Time Will TellBy CARL, a Verified Buyer from MN on May 08, 2025Changed my Toro 3000 series hydro fluid & filters at 250 hr maintenance. Time will tell but Amzoil hasn't ever let me down in the past!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Great oilBy TYLER, a Verified Buyer on May 08, 2025I used this oil in my Spartan mower, works great!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Good quality transmission fluidBy GREGORY, a Verified Buyer from Newbern, TN on May 05, 2025When I fixed the transmission leak of my mower with an inboard kit, I decided to use quality transmission fluid. It is cheaper to use good quality transmission fluid than to replace the transmission.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Synthetic Hydrostatic fluidBy CHARLES, a Verified Buyer from MO on April 30, 2025I will see if this stuff is good. The mower drives the same. It already had new fluid in it. Just an early first fluid change in my Hydrogear ZT5400'sBottom LineYes, I would recommend this to a friend.Was this review helpful?
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Positive hydraulic actionBy ALEX, a Verified Buyer on April 29, 2025It has renewed my mowers positive, firm feeling in the hydraulic system.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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First timeBy ANTHONY, a Verified Buyer on April 17, 2025I'm using this as a top-off for my zero turn mower. I've added just a little more than 6oz.. With probably 4oz. used to fill the expansion reservoir to the cold fill mark. That said, I've mowed for about 2 hours, and yes I have noticed a difference, particularly in the sound, as the oil circulated the usual whine of the hydrostatic pumps quieted some. I'm not attributing this to low oil level, and by adding oil it got better, as stated above, I added it to the expansion reservoir.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
