AMSOIL Biodegradable ISO 46 Hydraulic OilOffers high biodegradability and low aquatic toxicity, along with superior oxidation stability and low temperature performance. Ideal for sensitive environmental areas of Canada and the United States.

 Package sizes include:
5- US Gallon Pail (18.9 L)
55- Gallon Drum (208 L)
275- Gallon Tote (1051 L)

Q & A Article on AMSOIL Biodegradable Hydraulic Oil

This product replaces AMSOIL “TBI” ISO 32/46 Biodegradable Hydraulic Oil and Mobil EAL Envirosyn H Series ISO 46.

AMSOIL Biodegradable ISO 46 Hydraulic Oil is an elite fluid that breaks down once exposed to sun, water or microbial activity. The stability, performance and protective properties, coupled with the 95% biodegradability and low toxicity in water makes this the ideal option for sensitive habitats. Formulated with oleic vegetable oils, synthetic esters and ashless additives.

Oil Depot has wholesale programs available for your company so you can purchase AMSOIL Biodegradable ISO 46 Hydraulic Oil at the best price in Canada or the United States. Request our price list using the contact form on your right.

Features and Benefits of AMSOIL Biodegradable ISO 46 Hydraulic Oil

  • Offers superb component protection
  • Delivers long service life
  • Provides thermal and oxidative stability
  • Tolerates hot and cold operating conditions
  • Withstands moisture contamination
  • Degrades when met with sunlight, water or microbes
  • Prevents rust and system foaming

Specifications Met By AMSOIL Biodegradable ISO 46 Hydraulic Oil

  • Bio-based as classified by Section 9002 of the Farm Security and Rural Investment Act of 2002
  • Vickers M-2950-S
  • Vickers I-286-S
  • Modified Sturm OECD 301B Readily Biodegradable (Pw 1)

Ideal for Temperature Extremes

AMSOIL Biodegradable ISO 46 Hydraulic Oil provides reliable performance over a wide temperature range. It provides fast oil circulation in winter with a cold pour point of -33°C (-27°F). It also withstands hot operating temperatures up to 82°C (180°F).

Suitable Applications for AMSOIL Biodegradable ISO 46 Hydraulic Oil

This product is ideal for piston, gear or vane hydraulic pumps in locations where hydraulic oil leaks or spills are a risk to the environment. Ideal applications:

  • Construction
  • Forestry
  • Exploration, Drilling, Seismic
  • Pipeline, Oil industry
  • Mining
  • Agriculture
  • Marine
  • Golf course

Is AMSOIL Biodegradable ISO 46 Hydraulic Oil Compatible With Other Products?

AMSOIL Biodegradable ISO 46 Hydraulic Oil is compatible with most synthetic, semi-synthetic and conventional hydraulic fluids. For best results, drain the previous fluid and flush the system prior to filling system with this product.


AMSOIL Biodegradable Hydraulic Oil – ISO 46 (BHO)

ISO VG — ASTM D-2422
Viscometrics 100°C, cSt — ASTM D-445
Viscometrics 40°C, cSt — ASTM D-445
Viscosity Index (VI) — ASTM D-2270
Specific Gravity
Four-Ball Wear Test — ASTM D-4172
(40 kg, 1200 rpm, 75°C, 60 min.), Scar; mm
FZG Failure Load Stage — ASTM D-5182
Flash Point °C (°F) — ASTM D-92
232 (450)
Pour Point °C (°F) — ASTM D-97
-33 (-27)
Copper Strip Corrosion Test — ASTM D-130
Rust Procedure ASTM D-665
A – distilled water
B – salt water
Foam ASTM D-892
Sequence I
Sequence II
Sequence III
Demulsibility ASTM D-1401 Oil/Water/Cuff (minutes)
40/40/0 (10)
Modified Sturm, OECD 301B
Readily Biodegradable (Pw1)
Biodegradability % — CEC L-33-T-93
Fathead minnow, 96h, LC50, ppm
Daphnia magna, 48h, EC50, ppm
Cleanliness ISO 4406
(FSRIA) Criteria
A hydraulic fluid that is biodegradable and provides low-toxicity when spilled near bodies of water. Provides outstanding protection and all-temperature performance.
Manufacturer: AMSOIL
Model: Biodegradable ISO 46 Hydraulic Oil
Product ID: BHO