

⚙️ Ride smoother, last longer — the secret weapon for pro-level suspension performance!
Maxima 56901 15WT Standard Hydraulic Fork Oil is a premium 1-liter mineral-based oil designed for all standard and cartridge front suspension forks. Featuring a 5W viscosity grade, it delivers temperature-stable, low-friction performance while advanced additives prevent foaming, oxidation, seal hardening, and stiction. Trusted by riders and RV owners alike, it enhances ride comfort and eliminates hydraulic jack popping for a flawless, professional-grade suspension experience.

| ASIN | B000WKAV2U |
| Best Sellers Rank | #8,978 in Automotive ( See Top 100 in Automotive ) #23 in Engine & Oil Fluid Additives |
| Brand | Maxima |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,050) |
| Date First Available | August 6, 2007 |
| Exterior | Painted |
| Is Discontinued By Manufacturer | No |
| Item Form | Oil |
| Item Weight | 2.1 pounds |
| Item model number | 56901 |
| Liquid Volume | 33.81 Fluid Ounces |
| Manufacturer | Maxima |
| Manufacturer Part Number | 56901 |
| Material | Mineral-based oil |
| Model | 56901 |
| Number of Items | 1 |
| OEM Part Number | 56901 |
| Package Information | Bottle |
| Product Dimensions | 9 x 5.5 x 2.5 inches |
| Recommended Uses For Product | For all cartridge and standard-type forks. |
| SAE J300 Viscosity Grade | 5W |
| Specific Uses For Product | Various motorcycle applications depending on temperature and bike weight |
| UPC | 051027003710 |
| Unit Count | 1000 Milliliters |
| Viscosity | 5W |
K**.
Great for RV hydraulic jack popping.
If you own an RV and you hydraulic jacks make a popping sound, this fluid solves that problem. The problem is called "stiction" and it comes from the jack slowly lowering and the pop comes from the tiny movement it makes when it jerks down. This fork oil is "anti-stiction", so it treats the oil and the seals resulting in no more popping. Works great for my application.
J**R
Makes a big difference in ride quality.
I went to numerous auto shops and wasn't able to find this product. Changing the fork oil on my motorcycle made a big difference in the comfort of riding. I didn't realize the important of proper fork lubrication until I used this product. Excellent quality and value for a hard to find product.
J**H
Works as it should
Needed this to service my front forks over the weekend, and worked great. Honest was a pretty good deal and got the job done.
B**K
Great Product
Works as advertised great product
A**R
Fork oil
Everything about it was fine. Made a huge difference in the feeling of my 07’ Harley sportster. The only thing that I disliked was it came delivered and the bottle was leaking. I lost some fluid and had just enough to do the job. If I was short a few oz more that would have sucked even more then the soggy packaging
F**E
Fixed my popping noise on my RV landing gear
Works great for my popping noise on my RV jacks
Z**L
A good choice for a heavier sport touring bike
I've found that part of owning an old bike is catching up with a lot of missed maintenance. In the case of my old Honda sport tourer, the fork seals started to seep from 30+ years of use. The oil that leaked out was pitch black and runny as water, so my guess is that it was the oil that Honda put in back in the 1980s. Honda recommends using Dexron 3 ATF for their forks. You can go down a real rabbit hole figuring out what the equivalent weight of it is, but depending on who you ask it will be anywhere between a 7.5 and low 20 weight oil. Not very specific. Most people who ride bikes like mine agree that a 10 weight oil is the default, and that heavier riders might want to try a 15 weight. I'm on the heavier side (200+ lbs.) and I didn't particularly care for how squishy the front end felt with the factory fluid so I decided to go with a 15 weight shock oil to increase damping a bit. What a difference. The front end no longer dives under braking, and the bike doesn't feel like a water bed when the weight transfers back and forth. The extra damping is maybe a bit juddery on washboard surfaces, but on every other road type it feels a ton better. Sure, I could've used ATF or something like an ISO32 or ISO46 hydraulic oil and been fine, but part of what I'm buying is peace of mind. I saw how gunked up the old oil was and how many sludgy deposits I had to scrub out of the fork tubes. For less than $20, I have an oil with good reviews that has a known weight. If I want to adjust the damping, I have a starting point that I can use to compare, and since the oil is clear, I can take a sample and tell at a glance if it's starting to get discolored. I'm very happy with this choice.
S**G
Great product
Great product! Highly recommend!
S**T
Installed emulators in DR650. Build called for 15w fork oil....worked like a charm.
Y**O
Lo use en una suspensión rockshox recon y me funcionó Perfecto quedó como nueva. Y sin gastar tanto
R**N
Parfait
J**N
Excelente presentación, viscosidad adecuada y la botella venía perfectamente sellada. Se utilizó para hacer servicio a horquilla rock shox judy silver de aire y todo perfecto. Ojalá pudiera conseguir w5 en la misma presentación o tamaño.
E**S
I usually by small little bottles of shock oil. Realized I can use this. Will buy in a 30 wt as well. 15 is pretty thin but workable. Will use this for all my RC shocks.
Trustpilot
1 month ago
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