For 2013 Astra GTC J Opel recommends to use: API GL4, SAE 75W-85, and SAE 75W-90 transmission oils and genuine OEM transmission oil with a part number: 1940004. To select the right transmission oil see the table below.
How much transmission oil you need to put into 2013 Astra GTC depends on the engine installed, and some other conditions listed below.
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| Condition | Volume |
|---|
| Amount to change | 1.59 US qt. |
| New filling | 1.69 US qt. |
| All Opel diesel straight-4 1.7 L A 17 DTF engines | 2.43 US qt. |
| Transmission oil: API GL4, SAE 75W-85 | |
| Amount to change | 2.43 US qt. |
| New filling | 2.54 US qt. |
| All Opel diesel straight-4 1.7 L A 17 DTS engines | 2.43 US qt. |
| Transmission oil: API GL4, SAE 75W-85 | |
| D16 and D20 gearboxes | 1.9 US qt. |
| Transmission oil: SAE 75W-90 | |
| Amount to change | 1.8 US qt. |
| New filling | 1.9 US qt. |
| All Opel gasoline straight-4 2.0 L A 20 NFT engines | 1.59 US qt. |
| Transmission oil: API GL4, SAE 75W-85 | |
| All Opel gasoline straight-4 2.0 L B 20 NFT engines | 1.59 US qt. |
| Transmission oil: API GL4, SAE 75W-85 | |
| Amount to change | 2.11 US qt. |
| New filling | 2.32 US qt. |
Manual transmission oil replacement for your 2013 Opel Astra GTC can be done on your driveway. The whole job will take about 30–60 minutes and will save you around $100.
There are two plugs on the transmission - the drain plug at the bottom, and the refill plug on the side. First step is unscrew the refill plug, and then unscrew the drain plug. Use a spanner or a retched with the correct size head. After oil came up screw the drain plug back with a new gasket. Then refill the transmission with new transmission oil.
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2013 Opel Astra GTC user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.
Before doing any DIY service please check your insurance policy and Opel warranty policy for your region. In some regions DIY service may invalidate your warranty.
Table of Contents
- Air Conditioning Compressor Oil Capacity
- Air Conditioning Refrigerant Capacity
- Automatic Transmission Fluid Capacity
- Brake Fluid Capacity
- Clutch Fluid Capacity
- Cooling Fluid Capacity
- Engine Oil Capacity
- Fluid and Lubricant Specifications
- Manual Transmission Oil Capacity
- Brake System Specifications
- Chassis Specifications
- Cooling System Specifications
- Electrical System Specifications
- Emission
Conquer your fears and never give up!
DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Opel Astra GTC service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.
Doing basic service for your 2013 Opel Astra GTC you're not only saving money, but also also improving your technical skills and learning something new.