Maintaining proper oil levels is key to keeping your equipment in top condition. This post guide offers a complete oil capacity chart and essential tips to help you keep your Bobcat T770 operating at peak performance.
Bobcat T770 Oil Capacity Chart
| Component | Fluid Type | Capacity |
|---|---|---|
| Engine Oil | Diesel Engine Oil (e.g., 15W-40, 10W-30) | 13.3 quarts (≈3.3 gallons) |
| Hydraulic System | Bobcat Hydraulic Fluid (or ISO 46 equivalent) | ≈11.1 gallons (42 liters) |
| Chaincase (Final Drive) | Gear Oil (Synthetic recommended) | ≈5-10 oz per side (varies) |
| Cooling System | Ethylene Glycol Antifreeze (50/50 mix) | ≈3.1 gallons (11.7 liters) |
| Fuel Tank | Diesel Fuel | 36.5 gallons (138 liters) |
Oil Change Intervals
Changing oil on schedule is the best way to protect your Bobcat’s internals. Stick to these guidelines:
- Engine Oil: Every 250 hours or 6 months
- Hydraulic Oil: Every 1,000 hours
- Chaincase Oil: Every 500 hours
- Coolant: Every 2 years or 2,000 hours
Related Bobcat Hydraulic Oil Equivalent Chart(Complete Guide)
How to Check and Refill Bobcat T770 Oil
Steps:
- Park the loader on level ground.
- Let the engine cool.
- Use the dipstick to check engine oil.
- For hydraulic oil, check the sight gauge.
- Refill slowly and carefully to avoid overfilling.
Common Oil Issues in Bobcat T770 and Fixes
- Oil foaming? Use proper Bobcat fluids.
- Leaks? Check gaskets, drain plugs, and hoses.
- Overheating? Ensure cooling system is filled and air-free.
- Dirty oil too soon? Might indicate contamination—flush system.
Related Bobcat Refrigerant Capacity Chart(For All Models)
Tips to Extend Oil and Engine Life
- Use genuine Bobcat filters and fluids.
- Store oil in a clean, temperature-controlled environment.
- Pre-warm engine in cold weather before heavy work.
- Keep air filters clean to prevent dirt from entering the oil system.
FAQs
What kind of oil does a Bobcat T770 use?
SAE 15W-40 engine oil is standard. Use Bobcat brand hydraulic and chaincase fluids for best results.
How many quarts of engine oil does a Bobcat T770 need?
It requires 13 quarts (12.3 liters) with filter change.
Related Bobcat Filter Cross Reference Chart(For All Models + Filter Types)
How often should you change Bobcat T770 hydraulic oil?
Every 1,000 hours or as specified by your machine’s manual.
Can I use synthetic oil in a Bobcat T770?
Yes, as long as it meets the same SAE and API specifications.
Why is my Bobcat T770 using oil quickly?
It could be a sign of an oil leak, worn piston rings, or faulty seals.
What happens if I overfill the engine oil?
Overfilling can lead to foaming, poor lubrication, and potential engine damage.
Final words
Maintaining proper oil levels in your Bobcat T770 is one of the easiest yet most impactful ways to ensure its longevity. Use the oil capacity chart above as your go-to reference. Stick to the recommended service intervals, use high-quality fluids, and your Bobcat will keep delivering top performance for years.
